Form factor, interface and rotational speed before the capacity · review

white label WL 3 TB, 7200 rpm, one-year warranty review

An unbranded 3 TB, 7200 rpm drive with a one-year warranty in its title, at $36.65 a terabyte on Amazon.com on October 26, 2026 — within five per cent of the branded BarraCuda.

By Jean-Benoit Buisson

What the Amazon.com listing says

The title is the specification: WL 3 TB, 7200 rpm, 64 MB cache, SATA III 6.0 Gb/s, 3.5-inch, for RAID, NAS, DVR and desktop PC, with a one-year warranty.

The shelf it sits on

Drive	Capacity	What the listing publishes	Warranty	Amazon.com, October 26, 2026
WD Blue	1 TB	7200 rpm, 64 MB cache, cloning software	not stated	$109.19, $109.19 a terabyte
WL (white label)	3 TB	7200 rpm, 64 MB cache	one year	$109.95, $36.65 a terabyte
Seagate FireCuda	4 TB	7200 rpm, CMR, 256 MB, 255 MB/s, 300 TB a year	five years, plus three years of Rescue	no offer
HGST MegaScale DC	4 TB	7200 rpm on the listing, 5700 by HGST; 64 MB cache	—	no US offer
Seagate BarraCuda	8 TB	190 MB/s sustained	not stated	$279.99, $35.00 a terabyte
WD Purple Pro	8 TB	7200 rpm, 256 MB, 550 TB a year, 2.5 million hours MTBF	five years	$399.99, $50.00 a terabyte
Toshiba MG06 (renewed)	10 TB	7200 rpm, 256 MB	one-year Renewed guarantee	no US offer

One year, stated

A white-label drive is a mechanism sold without its maker’s name or its maker’s warranty, and the one-year term here is what that means in practice. It is stated plainly in the title. Among the new drives here, the FireCuda and the Purple Pro give five years and the BarraCuda and the WD Blue give none; the refurbished Toshiba carries a one-year Renewed guarantee.

The price of not knowing

At $109.95 on October 26, 2026 it was $36.65 a terabyte, within five per cent of the branded BarraCuda 8 TB at $35.00. The saving that usually justifies an unbranded drive is not there at these prices; what it offers instead is a smaller capacity, 7200 rpm stated, and a warranty that the BarraCuda listing does not state at all.

Its uses, including one nobody else names

RAID, NAS, DVR and desktop. A DVR writes continuously and overwrites in place, which is surveillance duty; the WD Purple Pro on this shelf is the drive rated for it, at 550 TB a year.

What is not published

The maker of the mechanism, a sustained rate, a workload rating, an MTBF and an acoustic figure.

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

Where it holds up, and where it stops

Strengths

Capacity, rpm, cache, interface and its rate all in the title
A warranty term published, one year, where the BarraCuda and the WD Blue publish none
Names its uses, including DVR, which nothing else on this shelf mentions

Compromises

One year is the shortest new-drive warranty here, against five on the FireCuda and the Purple Pro
No maker named: the mechanism inside is unbranded
No sustained rate, workload rating, MTBF or acoustic figure

Specifications

Capacity	3 TB — printed in the title, in the maker’s unit and reported here in that unit
Form factor	3.5-inch — printed in the title and named in the second bullet as the standard 3.5-inch form factor
Height	Not published on the listing — no millimeter figure appears
Interface	SATA III 6.0 Gb/s — printed in the title with both the generation and the rate, and named again in the third bullet
Rotational speed	7200 rpm — printed in the title
Cache size	64 MB — printed in the title. It is the smaller of the two cache sizes on this shelf
Stated workload rating	Not published on the listing — no terabytes-per-year figure appears, on a drive named for RAID and NAS use
Warranty length	One year — printed in the title. It is the shorter of the two warranty terms published on this shelf
Stated MTBF	Not published on the listing
Stated acoustic figure	Not published on the listing
Stated idle power	NOT PUBLISHED on the listing. The drive weighs 621 g (21.9 oz)
Amazon reference	B00X37FQBU
EAN	8682821114122
On Amazon.com	Amazon.com had an offer at $110 on October 26, 2026.

Where this unit differs

Put against the median of its own group on this site — not against every network product sold.

Cache size64 MB — printed in the title. It is the smaller of the two cache sizes on this shelf-75 % against the median of this group
Capacity3 TB — printed in the title, in the maker’s unit and reported here in that unit-62 % against the median of this group

The questions that come up before an order

What is a white-label drive?

A mechanism made by one of the remaining hard-drive manufacturers and sold without their branding or their warranty, which is why the term here is one year. The listing does not name the maker and does not claim the drive is refurbished.

Is it good for a DVR?

The title names DVR among its uses. A recorder writes a continuous stream for hours and overwrites the oldest footage, which is the duty surveillance drives such as the WD Purple Pro on this shelf are rated for, with a 550 TB a year workload. This listing gives no workload rating.

Against the rest of the network and storage gear

This network and storage gear share the category and the price bracket. Only what each one states is shown; an incomplete column would mislead.

Model	Price	Capacity	Form factor	Height	Interface
white label WL 3 TB, 7200 rpm, one-year warranty	$110	3 TB — printed in the title, in the maker’s unit and reported here in that unit	3.5-inch — printed in the title and named in the second bullet as the standard 3.5-inch form factor	Not published on the listing — no millimeter figure appears	SATA III 6.0 Gb/s — printed in the title with both the generation and the rate, and named again in the third bullet
Western Digital WD Blue 1 TB, cloning software included	$109	1 TB — printed in the title, in the maker’s unit. It is the smallest capacity on this shelf	3.5-inch — printed in the title	Not published on the listing — no millimeter figure appears	SATA 6 Gb/s — printed in the title, with the generation and the rate together
Seagate BarraCuda 8 TB, 190 MB/s sustained, no rpm published	$280	8 TB — printed in the title, in the maker’s unit and reported here in that unit	3.5-inch — implied by the title’s desktop framing and by the 147 × 102 mm (5.79 × 4.02 in) footprint recorded against the item; not stated in words	Not published on the listing — 26 mm (1.02 in) is recorded against the item, which is the standard 3.5-inch height	SATA 6 Gb/s — printed in the title. The listing also states 190 MB/s sustained at the outer diameter, one of only two sustained-rate figures on this shelf, and a sustained rate is what the interface actually delivers rather than what it can carry.
Western Digital Purple Pro 8 TB Surveillance Drive	$400	8 TB, in the maker's decimal unit	3.5-inch	Not published on the listing	SATA 6 Gb/s, per Western Digital's datasheet for the Purple Pro range; the Amazon title and bullets do not state it

What separates the models, in network and storage gear

If price decides: Western Digital WD Blue 1 TB, cloning software included, at $109.
Highest Capacity in the table: Western Digital Purple Pro 8 TB Surveillance Drive (8 TB, in the maker's decimal unit).

The buyer this one serves, among network and storage gear

Replacing a failed 3 TB drive where the warranty is not the point

What this one costs among network and storage gear

Details checked on October 26, 2026.

What buyers actually choose

Amazon reports what buyers took in the month before this page was last checked: at least 50.

The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.

Sources

Specifications: the manufacturer sheet for network and storage gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

What we look at on this network and storage gear