Procool SL440B

1U Rackmount Fan System with Blue LED high airflow fans

$99.99 In stock

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The PROCOOL SL440B provides high airflow cooling with Blue LED fans

The SL440B is a high airflow top quality 1U rackmount fan system.
(4) 40mm high speed Blue LED fans deliver high airflow to cool down the hottest racks.
Popular uses are amp racks, other live racks and data centers. The high airflow output ensures the best cooling in one rack space. The Blue LED lights not only provide for a unique rack look but prove to be handy when working in dark spaces.

Available in both intake and exhaust versions.
The Intake model SL440B blows air into the rack.
The Exhaust model SL440B-E pulls air from the rack.

High Airflow - 41.6 CFM
! Noise - 38.02 dBA
3 Year Warranty

fan model SXT80

Procool SL40B Fans...

Procool model SL40B fans offer the most airflow for the 1U rack systems.
Blue LED's light up when the fan is on.
Airflow 10.4 CFM at 8000 RPM and Noise 32 dBA per fan.

power supply

Power supply model # PSW-12V2A

Input: 100-240 VAC

Output: 12VDC

AC plug type: NEMA 1-15P

DC Cable: 36 inch with 2.1mm barrel plug)

Fits in one rack space when plugged as shown

Panel Size: (1U) 19" x 1.75" x 1.5" TV40 Pressure Chart
Panel color/material: black/metal
Fans: 4 - SL40B Blue LED fans
Fan Size: 40mm x 40mm x 20mm
Fan Speed: 8000 RPM
Air Flow: 41.6 CFM
Noise: 38.02 dBA
Bearings: Rifle Bearing
Fan Thermistor wire length: n/a
Controller Thermal Probe length: n/a
Power Supply: 100-240 VAC - 12 VDC
Power Supply Cable length: 36"
Power Supply Plug Type: NEMA 1-15P
Current draw: 1.0A
Power consumption: 3.00w
Grills/Guards: Black Wire

Installation Instructions

Mount the fan in the desired location. Connect the power supply to the fan panel with the mating plugs. Connect the power supply to AC power. The power supply accepts from 100 to 240VAC.

Operating Instructions

Data sheet downloadSL440B Operating Instructions.pdf

Care and Maintenance

To maintain optimal performance, keep the fans clean. Canned air works well. If the fans are used outdoors or in a dusty environment is recommended to clean the fan blades as needed to keep clean.


The fan will not start:

1. Check the power connections.
2. Is the light on the power switch on? If not check power. If on and the fans are not spinning see #3.
3. Turn the fan blade by hand to see if they are stuck. They should be free moving. If this starts the fan it is likely the fans need maintenance.

The fan is making noise:

1. Check for anything that could be rubbing against the fan blade.
2. Make sure the fan blades are clean. Dirty fan blades can make noise.

If the above steps do not solve the problem, contact our friendly customer service for assistance.

Customer Reviews

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Reviewed By: Jimmy on May 23rd 2016

The best rack cooling fan I've ever owned.

Reviewed By: John on May 24th 2016

Keeps my rack cool and is absolutely silent.

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Frequently purchased with this item

C14 adaptor cable

Converts NEMA 5-15R to IEC320 C14
Use to connect all Procool power supplies to C13 receptacle.
Length = 12 inches
Part No. PSA-C14

EU plug adaptor

Converts US or EU plug to fit Australian outlets
Part no. PSA-AU

AU plug adaptor

Converts US and UK plug to fit European outlets
Part no. PSA-EU