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The maker states where its own unit works less well

DSIT four-fan unit with thermostat for 800 mm cabinets, 410 × 40 × 40 mm

Four fans and a thermostat sold for a specific cabinet depth, with a fourth bullet that does something no other listing in this hub does: it tells you when the product will work less well.

DSIT black four-fan cooling unit for a deep server cabinet

DSIT four-fan unit with thermostat for 800 mm cabinets, 410 × 40 × 40 mm

Four fans and a thermostat sold for a specific cabinet depth, with a fourth bullet that does something no other listing in this hub does: it tells you when the product will work less well.

Fan count
Four — stated in the title as a fan package of four fans with a thermostat, and named again in the first bullet, which consists of the single word fans
Fan size
Not published on the listing — no diameter appears. The fifth bullet gives the unit as 410 × 40 × 40 mm in width, depth and height, which describes the assembly rather than a fan
Stated airflow
Not published on the listing — no figure appears in any bullet. The fourth qualifies the unit’s effectiveness instead, saying it decreases with a server cabinet that has perforated doors
Airflow unit
Not published on the listing, because no airflow figure is given for a unit to attach to
Stated noise level
Not published on the listing — no decibel figure and no measuring distance appears anywhere on the page
Roof or rack-mount format
Not published on the listing — the title calls it a fan unit suitable for server cabinets of 800 mm depth, and no bullet says whether it mounts in the roof, on the profile rails or anywhere else
Rack units occupied
Not published on the listing — no rack unit figure appears, and the mounting format that would imply one is not stated either
Airflow direction
Not published on the listing — nothing says which way the fans push. The fourth bullet is the only statement anywhere on this shelf about where the air ends up, and it is a warning rather than a direction
Thermostat or speed control
A thermostat — stated in the title as part of the package. No threshold range, no display and no control detail is published on the listing
Power connection
A connecting cable is included, described in the third bullet as 3-port, Del-109. No voltage, no plug type and no lead length is published
Amazon reference
B017M06LSA (same reference on 5 Amazon marketplaces)
EAN
8719172411638
  • States a condition in which the unit works less well, which nothing else in this hub does
  • Four fans and a thermostat together, at the lower half of this shelf
  • No mounting format anywhere, so nothing says where in the cabinet it goes

Best for: A deep floor-standing cabinet of around 800 mm where four fans and a thermostat are wanted and the seller can be asked the rest.

≈ 113 €
Check price on Amazon

Specifications

Fan count
Four — stated in the title as a fan package of four fans with a thermostat, and named again in the first bullet, which consists of the single word fans
Fan size
Not published on the listing — no diameter appears. The fifth bullet gives the unit as 410 × 40 × 40 mm in width, depth and height, which describes the assembly rather than a fan
Stated airflow
Not published on the listing — no figure appears in any bullet. The fourth qualifies the unit’s effectiveness instead, saying it decreases with a server cabinet that has perforated doors
Airflow unit
Not published on the listing, because no airflow figure is given for a unit to attach to
Stated noise level
Not published on the listing — no decibel figure and no measuring distance appears anywhere on the page
Roof or rack-mount format
Not published on the listing — the title calls it a fan unit suitable for server cabinets of 800 mm depth, and no bullet says whether it mounts in the roof, on the profile rails or anywhere else
Rack units occupied
Not published on the listing — no rack unit figure appears, and the mounting format that would imply one is not stated either
Airflow direction
Not published on the listing — nothing says which way the fans push. The fourth bullet is the only statement anywhere on this shelf about where the air ends up, and it is a warning rather than a direction
Thermostat or speed control
A thermostat — stated in the title as part of the package. No threshold range, no display and no control detail is published on the listing
Power connection
A connecting cable is included, described in the third bullet as 3-port, Del-109. No voltage, no plug type and no lead length is published
Amazon reference
B017M06LSA (same reference on 5 Amazon marketplaces)
EAN
8719172411638

On the listing

A fan unit described as a fan package of four fans with a thermostat, suitable for server cabinets of 800 mm depth; a first bullet consisting of the word fans; a connecting cable included, given as 3-port, Del-109; a note that with a server cabinet with perforated doors the effectiveness decreases; and dimensions of 410 × 40 × 40 mm in width, depth and height.

The fourth bullet

A seller has written down a case in which its own product does less than you would hope, and nothing else in this hub does that.

With a server cabinet that has perforated doors, the effectiveness decreases.

That is a single sentence and it changes how the whole listing reads. Every other page on this shelf describes optimal air circulation, effective cooling, protection against overheating — claims with no conditions attached, made for products whose airflow is mostly unpublished.

This one names a condition. It costs the seller sales among everybody with a mesh-doored rack, and it saves those same people from buying something that will disappoint them.

On the cabinets hub of this site, ventilation arrangements run from a glass door with no vents at all to side openings and perforated floor and top plates. A buyer with one of the more open cabinets now has a reason to think twice, supplied by the person selling the fan.

Four fans and a thermostat, and very little else

Beyond that sentence the page is thin.

The title gives four fans and a thermostat. The first bullet says fans. The third names a connecting cable by a part code. The fifth gives three dimensions.

There is no airflow figure, no noise level, no fan diameter, no voltage, no plug and — most awkwardly — no mounting format. Two units on this shelf are roof modules and three are 19-inch panels, and those are entirely different fixings. This page never says which kind it is.

Four hundred and ten by forty by forty

The dimensions are the only handle a buyer has on the fit, and they are worth reading carefully.

Four hundred and ten millimetres wide is narrower than the 19-inch rack width, which is around 483 mm including the mounting ears. Forty millimetres high is under one rack unit, which is 44.45 mm.

So the assembly is a bar rather than a tray, and where it goes has to be established with the seller. Sending those three numbers with the question is more useful than asking in words.

Eight hundred millimetres of cabinet

The title and the second bullet both name the cabinet depth: 800 mm.

That is a floor-standing rack rather than anything on the cabinets hub of this site, where the deepest is 450 mm. This unit is being sold for a bigger installation than most of what this site covers, and it is honest about the fact rather than claiming to suit everything with rails in it.

For a buyer with a full-depth rack in a garage or an outbuilding, that specificity is a point in its favour.

Before ordering

Ask where it mounts and send the three dimensions with the question, because the page never says. Check what the doors on your cabinet are made of, since the maker has told you it matters. And ask for a voltage and a plug type, which are not on the page in any form.

Availability

Priced from 113 € to 125 € across the German, French, Italian and Spanish Amazon stores the day this page was checked.

In the British Amazon catalogue with no live offer against it: the reference exists, nobody is filling it.

The American Amazon store returned nothing at all, so the buy button there opens a search in that country rather than a page that would not load.

Every figure in this section is what Keepa held on the day this page was last updated. Stock and prices move without warning.

Prices quoted in this text were read on 10 September 2026. The live price is at the top of the page.

More rack cooling fans

  • Extralink black four-fan 19-inch cooling panel with a digital temperature display

    EXTRALINK four-fan 19-inch panel with thermostat, digital display, threshold -40 to 50 °C

    The only cooling unit here that publishes the range its thermostat can be set across, and the only one with a fuse named in the description rather than left inside the case.

    Fan count
    Four — stated in the title as a fan panel with four fans for a floor-standing server cabinet
    Fan size
    Not published on the listing — no diameter and no frame dimension appears in any bullet. The second calls the unit both strong and quiet without measuring either
    Stated airflow
    Not published on the listing — no figure appears. The first bullet says the unit secures optimal air circulation in a 19-inch cabinet, protects the equipment and increases its service life, all without a number
    Airflow unit
    Not published on the listing, because no airflow figure is given for a unit to attach to
    Stated noise level
    Not published on the listing — the second bullet describes the unit as quiet and no decibel figure and no measuring distance follows it
    Roof or rack-mount format
    Not published on the listing as one or the other — the title names a fan panel for a 19-inch network cabinet and a floor-standing server cabinet, and no bullet says whether it sits in the roof or on the profile rails
    Rack units occupied
    Not published on the listing — no rack unit figure appears anywhere, and the mounting format that would imply one is not stated either
    Airflow direction
    Not published on the listing — nothing says which way the fans push, and nothing says whether they can be turned in their frame
    Thermostat or speed control
    A thermostat with a digital temperature display, stated in the title and in the second and third bullets, with thresholds settable from -40 to 50 degrees according to the fourth. It is the widest threshold range published on this shelf and the only one given as a span
    Power connection
    Not published on the listing — no lead, inlet, voltage or plug is named. The fifth bullet offers a 36-month warranty instead
    Amazon reference
    B09ZVJY6VC (same reference on 5 Amazon marketplaces)
    EAN
    5903148914718
    • Publishes the threshold range the thermostat covers, which only one other unit here does
    • A built-in fuse, named in the title and nowhere else in this hub
    • No airflow figure at all, on a four-fan panel

    Best for: A floor-standing cabinet where the thermostat needs setting precisely and the buyer already knows how the panel will be mounted and powered.

    ≈ £140 / 132 €
    Check price on Amazon
  • Intellinet black 19-inch 1U cooling unit with two fans mounted on rack rails

    INTELLINET NETWORK SOLUTIONS 19-inch 1U rail-mounted unit, two fans, 95–115 CFM, 44–49 dB/A, IEC 297-3

    The most measured product on this shelf: airflow, fan speed and noise level all printed as ranges, with a standard cited by number and a frame thickness in millimetres.

    Fan count
    Two — stated in the title, which describes a cooling unit with two fans for 19-inch cabinets, mounted on the profile rails
    Fan size
    Not published on the listing — no diameter and no frame dimension appears. The fourth bullet gives a fan speed of 2700 to 3100 rpm instead, which describes how fast they turn and not how big they are
    Stated airflow
    95 to 115 CFM — stated in the third bullet as the air throughput. It is one of only two airflow figures on this shelf, and the range is given rather than a single number
    Airflow unit
    Cubic feet per minute — the third bullet quotes CFM. The other airflow figure on this shelf is in cubic metres, per minute and per hour, so the two cannot be compared without converting one of them
    Stated noise level
    44 to 49 dB/A — stated in the fifth bullet. The measuring distance is not published on the listing, which is the figure a decibel number needs to be comparable
    Roof or rack-mount format
    Rack-mounted — stated in the title as a unit for mounting on the profile rails of a 19-inch cabinet, at one rack unit
    Rack units occupied
    One — stated in the title
    Airflow direction
    Not published on the listing — nothing says which way the fans push, and nothing says whether they can be turned in their frame. None of the seven listings on this shelf publishes a direction
    Thermostat or speed control
    Not published on the listing — no thermostat, no speed switch and no temperature sensor is named in any of the seven bullets. Four of the seven units on this shelf have one and this is one of the three that do not
    Power connection
    220 to 240 V at 50 to 60 Hz — stated in the sixth bullet as the operating voltage. No lead, inlet or plug type is published
    Amazon reference
    B00NW47CCK (same reference on 6 Amazon marketplaces)
    EAN
    0766623712668
    • Airflow, fan speed and noise all published as ranges, which no other unit here manages
    • Cites IEC 297-3 by number rather than claiming rack compatibility in general terms
    • No thermostat and no speed control, so the fans run whenever they are powered

    Best for: A cabinet needing continuous ventilation with a known air throughput, in a room where 44 to 49 decibels is acceptable all day.

    ≈ 103 €
    Check price on Amazon
  • kenable black 19-inch 1U rack fan tray with two fans and an LCD thermostat display

    kenable 19-inch 1U fan tray, two fans, digital thermostat with LCD, 180 mm mounting depth

    The only cooling unit on this shelf with a display on the front, showing the cabinet temperature and the fan setting, and the only one that names the length of the mains lead in the box.

    Fan count
    Two — stated in the fourth bullet, which describes two powerful fans providing air circulation in a 19-inch rack
    Fan size
    Not published on the listing — no diameter and no frame dimension appears. The fourth bullet calls the fans powerful and gives no measurement
    Stated airflow
    Not published on the listing — no figure appears in any bullet. The fourth describes optimal air circulation and effective cooling of IT and network equipment without quantifying either
    Airflow unit
    Not published on the listing, because no airflow figure is given. Two listings on this shelf publish one and they use different units from each other
    Stated noise level
    Not published on the listing — no decibel figure and no measuring distance appears. The fans are described as powerful rather than as quiet
    Roof or rack-mount format
    Rack-mounted — stated in the title as a 48.3 cm 19-inch 1U unit, and in the third bullet as a standard rack mounting with the fixing ears supplied, for data and communication cabinets
    Rack units occupied
    One — stated in the title and in the third bullet, which also gives a mounting depth of 180 mm
    Airflow direction
    Not published on the listing — the title and the fourth bullet describe a two-way fan system, which is not explained anywhere. Whether that names two fans, two directions or a reversible arrangement is not stated, and nothing says which way the air moves
    Thermostat or speed control
    A built-in thermostat switching the fans on and off automatically as the temperature crosses a set threshold, stated in the first bullet, with a large LCD display in the second for monitoring the current temperature and the fan settings. The threshold range is not published on the listing
    Power connection
    A 1.8 m IEC mains lead, included — stated in the fifth bullet as part of a complete set ready for immediate installation
    Amazon reference
    B0FJMDPX4W (same reference on 5 Amazon marketplaces)
    EAN
    5054338118246
    • A display showing the current cabinet temperature, which no other unit here offers
    • The mains lead is in the box and its length is printed
    • The two-way fan system is named twice and explained nowhere

    Best for: A rack where somebody wants to see the cabinet temperature without opening the door, and can spare a rack unit for it.

    ≈ £68 / 90 €
    Check price on Amazon

Others worth having spare

  • HMF black 19-inch 1U rack shelf with front mounting flanges

    HMF 19-inch 1U shelf, 300 mm mounting depth, 483 × 300 × 44 mm, 16 kg, cage nuts included

    The shelf that describes its own installation most precisely — fixing points on the front face, at one rack unit — and publishes its own weight alongside the load it will carry.

    Rack units
    One — stated in the title and in the fourth bullet, which puts 1 HE in brackets after the description of the fixing points
    Mounting depth
    300 mm — stated in the title as the installation depth, and in the first bullet as a requirement: the shelf suits 19-inch cabinets offering at least 300 mm of mounting depth
    Cantilever or four-post support
    Neither term is used, and the fourth bullet describes the arrangement plainly: a quick installation on the profile rails thanks to fixing points on the front face. A shelf carried at the front alone is what the cantilever entry in this table describes, and the listing does not use the word
    Stated load rating
    About 16 kg — stated in the fifth bullet alongside the dimensions and the weight. The word about is the maker’s own
    Vented or solid surface
    Not published on the listing — no perforation, no vent and no airflow claim appears in any of the five bullets. The third describes stable steel sheet with a scratch-resistant black powder coating
    Sliding or fixed
    Fixed — stated in the first bullet as a shelf for fixed installation, and confirmed by the fourth, which describes it bolted to the profile rails
    Usable surface dimensions
    Not published on the listing — the fifth bullet gives 483 × 300 × 44 mm as the width, depth and height of the shelf, which are outer dimensions. No separate figure for the flat surface appears
    Fixings supplied
    Cage nuts — named in the fifth bullet as the accessory. No screws and no washers are listed alongside them
    Amazon reference
    B09F1DQCSD (same reference on 5 Amazon marketplaces)
    EAN
    4010537659929
    • Describes the fixing arrangement in plain words, which five of the seven shelves here never do
    • Publishes its own weight, 1.44 kg, as well as the load it carries
    • Nothing says whether the surface is perforated, and this is a cabinet part

    Best for: A 19-inch cabinet of at least 300 mm depth holding a modest, awkward object that needs a stable platform and nothing more.

    ≈ 21 €
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  • StarTech pair of black vented 19-inch 1U cantilever rack shelves

    StarTech two 1U vented cantilever shelves, 25 cm deep, 20 kg each, tested at 1.5 times load

    The only shelf here sold in pairs and the only one whose maker states a test margin above the rating, at a quarter of a metre deep and twenty kilograms a tray.

    Rack units
    One each — stated in the title and in the first bullet, which describes two 1U vented cantilever rack shelves in a set
    Mounting depth
    25 cm — stated in the title. No minimum cabinet depth is named, and no adjustment range appears
    Cantilever or four-post support
    Cantilever — stated in the title and in the first bullet, and detailed in the fourth as SPCC cold-rolled steel with cantilever front mounting. It is one of only two listings on this shelf to name its support arrangement in words
    Stated load rating
    Up to 20 kg per shelf — stated in the title and in the fourth bullet, which adds that the shelves are tested at one and a half times that load. The test is the maker’s statement and no test document is named
    Vented or solid surface
    Vented — stated in the title and in the third bullet, which describes a perforated 1U tray supporting even airflow and reducing hot spots under servers or audio-visual equipment
    Sliding or fixed
    Fixed — the fourth bullet describes cantilever front mounting, and no bullet mentions runners or any pull-out action
    Usable surface dimensions
    Not published on the listing — 25 cm is given as the depth in the title and no width or surface figure appears in any of the five bullets
    Fixings supplied
    Not published on the listing — no screws, cage nuts or washers are listed. The first and second bullets describe fitting out several racks to a consistent layout and name no hardware
    Amazon reference
    B0GZLDHSV1 (same reference on 6 Amazon marketplaces)
    EAN
    0065030937498
    • Two shelves in one pack, which no other listing on this shelf offers
    • Names the cantilever arrangement outright rather than leaving it to be inferred
    • The dearest listing on this shelf, and it is two of the simplest shelves here

    Best for: Two cabinets, or one cabinet being fitted out to a consistent layout, where both trays go in at the same time.

    ≈ $58 / £70 / 76 €
    Check price on Amazon
  • Stalflex black perforated 19-inch 1U rack shelf

    STALFLEX 19-inch 1U shelf, rear fixing, variable depth, 25 kg

    A 25 kg perforated shelf sold on a rear fixing and a variable depth, with five bullets of description and not one measurement among them.

    Rack units
    One — stated in the title and in the second bullet, which calls the standard 1U and 19-inch format a guarantee of secure mounting
    Mounting depth
    Not published in the title or in any bullet — the title says variable depth and stops there. The manufacturer reference recorded for this listing reads 150 mm, which is a catalogue string rather than a published specification, and no bullet confirms it
    Cantilever or four-post support
    Neither is named — the title states that the fixing is at the rear, which is not the arrangement either of the two named terms describes. No post count and no front-flange description appears in any bullet
    Stated load rating
    25 kg — stated in the title as the carrying capacity. It sits above three of the fixed shelves on this shelf and well below the four-post one
    Vented or solid surface
    Vented — the first and fourth bullets both describe a perforated shelf, credited with improving air circulation and with preventing equipment overheating
    Sliding or fixed
    Not published on the listing — no bullet says whether the shelf is bolted in place or runs on any kind of slide. The fourth mentions mounting equipment to it with cable ties to stop accidental slipping, which is about the equipment rather than the shelf
    Usable surface dimensions
    Not published on the listing — no width, no depth and no surface figure appears in the title or in any of the five bullets
    Fixings supplied
    Not published on the listing — no screws, no cage nuts and no washers are listed. The second bullet says the standard format guarantees secure mounting and names no hardware
    Amazon reference
    B0D9RT1V64 (same reference on 6 Amazon marketplaces)
    EAN
    5903351265003
    • Twenty-five kilograms, more than two of the three cheaper shelves here carry
    • Perforated, and the page says twice what the perforation is for
    • Not one dimension in five bullets, on a part whose whole job is to fit a space

    Best for: A shallow cabinet where 25 kg has to sit on something and the buyer can confirm the depth with the seller before ordering.

    ≈ 13 €
    Check price on Amazon

All rack cooling fans