The footnote that corrects the headline

SanDisk Ultra Flair 32 GB, whose own footnote undercuts its headline

A metal thirty-two-gigabyte drive quoting 150 MB/s and then publishing the arithmetic that reduces it: a 1.2 GB film in under thirty seconds is about forty megabytes a second.

SanDisk Ultra Flair 32 GB metal USB 3.0 flash drive

SanDisk Ultra Flair 32 GB, whose own footnote undercuts its headline

A metal thirty-two-gigabyte drive quoting 150 MB/s and then publishing the arithmetic that reduces it: a 1.2 GB film in under thirty seconds is about forty megabytes a second.

Capacity: 32 GB — stated in the title and in the reference. The first bullet’s footnote adds that performance varies by drive capacity, which means the headline figures belong to the range rather than to this version
USB generation: USB 3.0 — stated in the title and in the first bullet, which requires a USB 3.0 port for the quoted speed and notes that performance may be lower depending on the host
Stated link rate: Not published on the listing — no figure in gigabits per second appears, only the generation name
Connector type: Type-A — implied by the body and never designated on the page
Stated read figure: Up to 150 MB/s — stated in the first bullet and its footnote, which says plainly that 150 is the read speed and that it varies by drive capacity.
Stated write figure: Given as a multiple and then undercut by the page’s own example — the first bullet’s footnote gives writing as up to fifteen times a standard USB 2.0 drive at 4 MB/s, which is about 60 MB/s. The second bullet’s footnote gives a 1.2 GB film in under thirty seconds, which is about 40 MB/s. Both are published and neither is chosen
Body design: A sleek, durable metal casing — stated in the fourth bullet. At 4 g (0.1 oz) and 13 by 42 by 7 mm (0.28 in) it is the lightest drive on this shelf. Whether a cap is fitted is not stated
Keyring provision: Not published on the listing — no loop, no lanyard hole and no clip is named anywhere, on a drive small enough to lose
Stated ingress rating: Not published on the listing — no water rating, no dust rating and no IP figure appears
Warranty length: Not published in the bullets — the description names a five-year limited term for the range and the bullets do not restate it, so the figure is attached to the family rather than printed as this listing’s own specification
Amazon reference: B015CH1JIW
EAN: 0619659136697

Publishes the arithmetic that corrects its own headline: a 1.2 GB film in under thirty seconds is about 40 MB/s, against the 150 on the front
Names the encryption properly — 128-bit AES, with the Windows and macOS versions it works on and the Mac download it needs
The headline 150 MB/s is a read figure for the range, and the page’s own example implies about 40 MB/s writing on a real file

Best for: A small, solid drive for documents and photographs, bought with the thirty-second film example in mind rather than the number on the front.

≈ $18

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Specifications

Capacity: 32 GB — stated in the title and in the reference. The first bullet’s footnote adds that performance varies by drive capacity, which means the headline figures belong to the range rather than to this version
USB generation: USB 3.0 — stated in the title and in the first bullet, which requires a USB 3.0 port for the quoted speed and notes that performance may be lower depending on the host
Stated link rate: Not published on the listing — no figure in gigabits per second appears, only the generation name
Connector type: Type-A — implied by the body and never designated on the page
Stated read figure: Up to 150 MB/s — stated in the first bullet and its footnote, which says plainly that 150 is the read speed and that it varies by drive capacity.
Stated write figure: Given as a multiple and then undercut by the page’s own example — the first bullet’s footnote gives writing as up to fifteen times a standard USB 2.0 drive at 4 MB/s, which is about 60 MB/s. The second bullet’s footnote gives a 1.2 GB film in under thirty seconds, which is about 40 MB/s. Both are published and neither is chosen
Body design: A sleek, durable metal casing — stated in the fourth bullet. At 4 g (0.1 oz) and 13 by 42 by 7 mm (0.28 in) it is the lightest drive on this shelf. Whether a cap is fitted is not stated
Keyring provision: Not published on the listing — no loop, no lanyard hole and no clip is named anywhere, on a drive small enough to lose
Stated ingress rating: Not published on the listing — no water rating, no dust rating and no IP figure appears
Warranty length: Not published in the bullets — the description names a five-year limited term for the range and the bullets do not restate it, so the figure is attached to the family rather than printed as this listing’s own specification
Amazon reference: B015CH1JIW
EAN: 0619659136697
On Amazon.com: Amazon.com had an offer at $18 on October 26, 2026.

The first bullet gives up to 150 MB/s and a footnote with two qualifications in it: “Write to drive up to 15x faster than standard USB 2.0 drives (4MB/s); varies by drive capacity. Up to 150MB/s read speed.”

Read that carefully. Fifteen times four megabytes a second is sixty — so the writing figure is given as a multiple rather than a number, and it works out at about 60 MB/s. The 150 is explicitly the read speed. And “varies by drive capacity” means neither figure is promised for this particular 32 GB version, which is the smallest in the Ultra Flair range and generally the slowest.

The second bullet then does the arithmetic itself. A full-length film in less than thirty seconds, footnoted as a 1.2 GB MPEG-4 transfer. Twelve hundred megabytes in thirty seconds is forty megabytes a second — a quarter of the headline, and below even the sixty the first footnote implies. The page has published the figure that corrects its own front page, which is rarer and more useful than a bigger number would be.

The intro to this section says to look for the write figure rather than the read figure, and to treat a single number as the read speed. This listing gives the read figure, a multiplier for the write figure, and a worked example that lands lower than both.

The fifth bullet gives password protection and, in its footnote, specifies it: 128-bit AES encryption, supported on Windows 7, 8 and 10 and on macOS 10.9 or later, with a software download required for the Mac. Two listings on this shelf mention encryption and this is the only one that names the key length and the operating systems.

The fourth bullet gives a sleek, durable metal casing. At 4 g (0.1 oz) and 13 by 42 by 7 mm (0.28 in) this is the lightest drive on this shelf. There is no keyring loop named anywhere, which on a metal body this small is worth knowing before it goes into a pocket with keys rather than on them.

USB 3.0 is stated in the title and no link rate in gigabits per second appears. No ingress rating. The description names a five-year limited warranty for the range and this listing’s own bullets do not restate it, so the term is attached to the family rather than printed as a specification here.

At $17.99 for 32 GB on October 26, 2026 this is $0.562 a gigabyte — the most expensive byte on this shelf, just above the Samdata five-pack at $0.550.

Prices quoted in this text were read on October 26, 2026. The live price is at the top of the page.

The questions that come up before an order

Is it really 150 MB/s?

That is the read figure, and the footnote says it varies by drive capacity. The second bullet’s own example — 1.2 GB in under thirty seconds — works out at about 40 MB/s, which is what writing a real file looks like.

How does the password protection work?

128-bit AES encryption, per the fifth bullet’s footnote, supported on Windows 7, 8 and 10 and on macOS 10.9 or later. The Mac version needs a software download from the maker.

Is there a keyring loop?

None is published. No loop, lanyard hole or clip is named anywhere on the page, on a drive of four grams.

More USB flash drives

SIMMAX 32 GB swivel drive publishing its usable capacity as a range

The cheapest American listing on this shelf, and the only drive here that publishes what the operating system will actually show — 29.10 to 29.8 gigabytes of a nominal thirty-two.

Capacity
32 GB nominal, with the usable figure published — the second bullet gives an available capacity of 29.10 to 29.8 GB. It is one of two listings on this shelf that publish what the operating system will actually show, and the only one that gives it as a range
USB generation
USB 2.0 — stated in the title and in the third bullet, which adds compatibility with USB 2.0 and below
Stated link rate
Not published on the listing — no figure in gigabits per second appears, and the generation is given as a name rather than a rate
Connector type
Type-A — implied by the body shape and the swivel clip described in the fourth bullet, and never designated on the page
Stated read figure
Not published on the listing — no figure in megabytes per second appears anywhere. The intro to this shelf says nearly every listing states a read speed; this is one of two here that state none
Stated write figure
Not published on the listing — no writing rate appears, which on a USB 2.0 drive is where the practical ceiling sits
Body design
Capless, with a metal clip rotating 360 degrees around an ABS plastic shell with a rubber-oil finish — stated in the fourth bullet, which gives socket protection and not losing a cap as the two reasons
Keyring provision
The swivel clip itself — the fourth bullet describes a metal clip around the body, and no separate loop or lanyard hole is named
Stated ingress rating
Not published on the listing — no water rating, no dust rating and no IP figure appears anywhere
Warranty length
One year — stated in the fifth bullet. One listing on this shelf publishes a longer term for the drive itself — five years on the SanDisk Ultra 512 GB — and three publish none at all
Amazon reference
B07S4GGHNR
EAN
0611720047598
- Publishes the usable capacity as a range, 29.10 to 29.8 GB of a nominal 32, which only the Amazon Basics here also attempts
- The cheapest listing on this shelf at $9.99
- No read figure and no write figure anywhere, on a shelf where almost every other listing gives at least one
Best for: A ten-dollar drive for moving documents, chosen by somebody who wants to know in advance exactly how much space will appear.

≈ $10
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Amazon Basics 256 GB with a write figure, a usable capacity and three published negatives

The only drive on this shelf publishing a write figure as a figure, and the only one that names its factory file system, its four-gigabyte file limit, its usable capacity and the indicator lamp it does not have.

Capacity
256 GB nominal, with over 230 GB stated as available — the third bullet notes that an operating system may show less than the label because of different measurement standards. It is one of two listings on this shelf publishing a usable figure
USB generation
USB 3.1 Gen 1 — stated in the title and in the first bullet, with the fourth requiring a USB 3.1 Gen 1 or USB 3.0 port for the quoted speeds and noting slower operation on USB 2.0 hosts
Stated link rate
Not published on the listing — no figure in gigabits per second appears, only the generation name
Connector type
Type-A — implied by the retractable body and the USB 2.0 backwards compatibility, and never designated on the page
Stated read figure
Up to 130 MB/s — stated in the first and fourth bullets, from internal testing under controlled conditions. The SanDisk Ultra 512 GB on this shelf quotes the same 130
Stated write figure
Up to 30 MB/s — stated in the fourth bullet beside the read figure, a ratio of better than four to one. Several of the seven listings on this shelf publish a write figure, and this is one of them
Body design
Retractable and telescopic, with a keyhole — stated in the fifth bullet, so the connector withdraws into the shell and there is no cap. The seventh bullet states that there is no LED indicator
Keyring provision
A keyhole in the body — stated in the fifth bullet as part of the retractable design
Stated ingress rating
Not published on the listing — no water rating, no dust rating and no IP figure appears
Warranty length
Not published on the listing — no term appears in the title or in any of the eight bullets, which puts this among the three listings on this shelf with none
Amazon reference
B0B61DGG18
EAN
0840095889704
- Publishes both figures — 130 MB/s read and 30 MB/s write — where several of the seven listings on this shelf publish no write figure at all
- The only listing on this shelf that names its file system, and the four-gigabyte file limit FAT32 imposes before reformatting
- 30 MB/s writing means a large folder takes four times as long to copy on as off, which the page is honest about and does not make faster
Best for: A buyer who wants to know the write speed, the usable space and the file system before ordering, and will reformat it on the first day.

≈ $66
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PNY Elite-X Fit 512 GB at 200 MB/s, built to stay in the port

The highest read figure on this shelf at 200 MB/s, in a body small enough to live in a port permanently — and the only listing here that explains what USB 3.1 Gen 1 actually means.

Capacity
512 GB — stated in the title and in the reference. It is the joint-largest capacity on this shelf, with the SanDisk Ultra 512 GB
USB generation
USB 3.1 Gen 1, explained — the first bullet states that USB 3.1 Gen 1 offers identical performance to USB 3.0 under a new name, and gives backwards compatibility with USB 2.0. It is the only listing on this shelf to resolve that naming
Stated link rate
Not published on the listing — no figure in gigabits per second appears, although the first bullet’s equivalence to USB 3.0 places it at five gigabits
Connector type
Type-A — implied by the low-profile body and the hosts named in the fourth bullet, and never designated on the page
Stated read figure
Up to 200 MB/s — stated in the second bullet and in the title, and framed in the third as up to thirty times a standard PNY USB 2.0 drive. It is the highest read figure on this shelf; the others that publish one reach 150 at most
Stated write figure
Not published on the listing — no writing rate appears in the title, the five bullets or the description. Several of the seven listings on this shelf are in the same position
Body design
Micro-sized, low-profile, plug-and-stay — stated in the fourth and fifth bullets as able to remain connected to a host for extended periods without interfering with everyday use. It answers the problem the intro to this shelf names, that a wide drive left in blocks the sockets beside it
Keyring provision
Not published on the listing — no loop, no clip and no lanyard hole is named, which follows from a drive designed to stay in a port rather than travel
Stated ingress rating
Not published on the listing — no water rating, no dust rating and no IP figure appears
Warranty length
Not published on the listing — no term appears anywhere on the page, which puts this among the three listings on this shelf with none
Amazon reference
B088RMCCLR
EAN
0751492628561
- The highest read figure on this shelf at up to 200 MB/s, a third above anything published here
- The only listing on this shelf that explains USB 3.1 Gen 1 as the same link as USB 3.0 under a new name
- No write figure, on the highest read figure on this shelf — where the one drive here publishing both shows a ratio of better than four to one
Best for: A console, a car stereo or a laptop that needs more storage permanently, where the drive goes in once and stays.

≈ $70
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Others worth having spare

Yecaye 15 × 10 mm (0.59 × 0.39 in), one cable, 8 pieces

The smallest channel and the lowest price on this shelf — 0.59 × 0.4 in for a single low-voltage cable, eight pieces, adhesive — with every other detail left out.

Internal width
Not published on the listing — 0.59 in is given in the title as W0.59in, with no statement of whether it is measured inside or outside
Internal height
Not published on the listing — 0.4 in is given as H0.4in, with the same ambiguity. The first bullet states the capacity as one low-voltage cable and names four kinds
External dimensions
0.59 in (15 mm) W × 0.4 in (10.2 mm) H — the figures the listing publishes, labeled W and H in the title. It is the smallest section on this shelf
Fixing method
Self-adhesive — stated in the second and third bullets, which name reliable mounting tape with strong adhesive properties. No screws or anchors are mentioned
Hinged or lidded profile
Not published on the listing — no lid, hinge, clip or cover is described in the title or in any of the five bullets
Length per piece
Not published on the listing — the title gives 113 in in total and the second bullet gives 8 channels, which divides to about 359 mm (14.1 in), but no piece length is stated
Pack quantity
Eight pieces — stated in the second bullet, which gives 8 cable channels for any residential or office project
Accessories supplied
Not published on the listing — the second bullet says the kit includes 8 cable channels and "some parts", and nothing is counted or named
Material
Not published on the listing — no PVC and no material of any kind is named in the title or in any bullet
Color
White — stated in the title
Amazon reference
B07D8WVJWF
EAN
0711766624644
- Sized honestly for one cable — a power cord, one Cat5, one speaker wire or one lamp cord
- The smallest section on this shelf, 0.59 × 0.4 in, for a run that should barely show
- One cable only — a second needs a second run
Best for: One visible cable — an Ethernet run, a lamp flex, a television power lead

≈ $13
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STATIONPC PocketCloud Dock, one M.2 slot reached over Ethernet rather than USB

A dock reached over a network rather than by a cable to a computer, with three named backup modes — and no M.2 format, no link rate and no wattage anywhere on the page.

Bay count
One — a single M.2 NVMe slot, stated in the title and in the first bullet. No 2.5-inch or 3.5-inch bay exists
Supported drive sizes
Not published on the listing — no M.2 format is named anywhere, neither 2230, 2242, 2260, 2280 nor 22110, on a device whose M.2 slot is its only position
Supported drive interfaces
M.2 NVMe — stated in the title. Whether the slot also accepts an M.2 SATA module is not stated, and no SATA bay of any kind exists
Solid-state slot support
The whole device is one M.2 slot, stated in the title as diskless. The first bullet adds that modules of different capacities can be mixed between the dock and the portable unit, which follows from there being no array to balance
Offline cloning
Yes, in three named modes — the third bullet gives Full Backup, which mirrors everything, Selective Backup for named files, and Auto Transfer, which syncs automatically. The fourth adds one-click backup through the magnetic connection
Interface standard
2.5-gigabit Ethernet, with Power Delivery charging and USB-A ports — stated in the sixth bullet. It is reached over a network rather than by a cable to a computer, and the connection to the companion device is magnetic rather than a plug
Stated link rate
Not published on the listing — the 2.5-gigabit figure belongs to the network socket and not to the M.2 slot, and the two are different measurements. No figure in gigabits per second appears for the drive itself
Connector type
Not published on the listing in full — the sixth bullet names multiple USB-A ports without a count or a USB generation, and the fourth names a magnetic connection to the maker’s portable NAS. No socket for a host computer is specified
UASP support
Not published on the listing — UASP is a USB mass-storage protocol and this device is reached over a network, so the question does not arise in the usual form. No bullet mentions it
Power supply
Power Delivery charging, with no wattage — stated in the sixth bullet as stable power. The fourth describes the dock as charging the portable unit as well as backing it up, so the figure matters twice and is given neither time
Per-bay controls
Not applicable with one bay, and replaced by a mode selection — the third bullet gives three backup modes and the fourth a one-click backup triggered by setting the portable unit on the magnetic connection
Amazon reference
B0FPCTJZ4C
EAN
0860014318214
- Three backup modes named individually — full, selective and automatic
- Describes a copy held on separate hardware in a separate place, and argues for it correctly rather than offering an array instead
- No M.2 format published, on a device whose single M.2 slot is its only position and which arrives empty
Best for: Someone already using the maker’s portable NAS who wants the second copy to live at home, on the network, and to charge while it copies.

≈ $130
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RackPath 19-inch 12U open frame, two 1U shelves supplied, 68 kg (149.9 lb) stated

The only open frame on this shelf, and the cheapest of the American listings on it: no door, no panels, no lock, and two vented shelves with rear supports already in the box.

Rack units
Twelve — stated in the title and in the fourth bullet, which gives the height as accommodating switches, patch panels and audio-visual equipment
Mounting width
19-inch — stated in the fourth bullet as universal compatibility with all standard 19-inch rack-mountable devices
Usable internal depth
Not published, and not applicable in the usual sense — an open frame has uprights rather than front and rear rails, so there is no enclosed depth to measure. What limits the depth of what mounts on it is the 14-inch shelves supplied, named in the first bullet
Wall mounting or floor mounting
Either — stated in the fifth bullet as a flexible choice, with eight M5 wood screws for the wall case supplied in the second
Rail arrangement
Uprights rather than rails, with threaded holes — the second bullet supplies thirty 10-32 mounting screws, which names the thread standard and so tells a buyer the holes are tapped rather than square-punched. No hole count is published, and nothing else on this shelf publishes a thread at all
Door type
None — there is no door and no side panel. Nothing in the frame is enclosed, which is the point of the format rather than a gap in the listing
Ventilation
Open on every side, so no vent, no louvre and no fan is needed or named. It is the only listing on this shelf whose cooling arrangement requires nothing to be published
Stated load rating
150 lb, converted in the third bullet to 68 kg (149.9 lb), from reinforced cold-rolled steel with a black powder coat. The bullet claims this exceeds most competitors in its class; on this shelf it beats the four Tecmojo cabinets and falls short of the two VEVOR cabinets
Cable entries
Not applicable — with no enclosure there is nothing for a cable to enter through, and the listing names none. Nothing is published about cable management of any kind
Lock type
None — there is no door to lock. It is the only listing on this shelf where the absence is structural rather than unpublished
Amazon reference
B0FH9Y6Y19
EAN
6974421603536
- The only open frame on this shelf: nothing to overheat behind, nothing to take off, and no door that will not close on a rear power inlet
- Two 14-inch vented 1U shelves with rear supports already in the box, with their depth published
- No door, no panels and no lock, so everything in it is visible and reachable by anyone in the room
Best for: A cupboard or a cellar where nothing needs locking away, the heat has to go somewhere, and two shelves are wanted on day one.

≈ $86
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All USB flash drives

SanDisk Ultra Flair 32 GB, whose own footnote undercuts its headline

Specifications

The questions that come up before an order

More USB flash drives

SIMMAX 32 GB swivel drive publishing its usable capacity as a range

Amazon Basics 256 GB with a write figure, a usable capacity and three published negatives

PNY Elite-X Fit 512 GB at 200 MB/s, built to stay in the port

Others worth having spare

Yecaye 15 × 10 mm (0.59 × 0.39 in), one cable, 8 pieces

STATIONPC PocketCloud Dock, one M.2 slot reached over Ethernet rather than USB

RackPath 19-inch 12U open frame, two 1U shelves supplied, 68 kg (149.9 lb) stated