Bykski PMS5 Pump w/ Armor and Reservoir Ready Pump Top - Black (CP-RX-X)
In this gallery — tap to open full size

Bykski PMS5 Pump w/ Armor and Reservoir Ready Pump Top - Black (CP-RX-X)

CP-RX-X Only 2 left in Boise, ID
$119.99USDFree shipping over $125

US import duties and tariffs are included in every price.

Ships the same business day on orders placed before 2:00 PM MST. Overnight delivery available at checkout.
Ships directly from our Idaho inventory. You avoid overseas sellers, processing delays, international shipping, customs hold-ups and additional fees.
What this works with

Check these against your build before you order. If anything here does not match what you have, ask us first — it is cheaper than a return.

  • Loop:Aluminum or Non-Aluminum
Not sure? Send us your model/part number and we'll confirm it for you.
or ready to checkout now
Building your first loop? Plan the rest of it
Why buy it here
US warranty, handled in Boise
Claims are settled here, by the people who sold it to you.
Exclusive US distributor
The official US source for Bykski, so every part is genuine.

Before you install it

This is a component, not an assembly — how it goes in depends on the loop it is joining. What does not change is the last step: leak test before power. Run the pump on a bench supply with the rest of the system unpowered. 24 hours is the standard, an hour is the minimum.

Custom water cooling is installed by you, at your own risk. We are not responsible for leaks, or for damage to your parts or system. If you're unsure at any step, ask before you power the loop.

About this part

The Bykski PMS5 Liquid Cooling 12V Pump Motor is a high reliability, high pressure industrial pump, featuring PWM speed control. Like most other PMS5 pumps this reliability is afforded by the same unique design as the original pump, which contains only one moving part: the magnetically driven spherical impeller spins on a single ceramic bearing, thus extending the life of this pump beyond existing standards.

 The pumps data and speed control is done using the PWM 4-pin connector.  By connecting this the pump speed can be controlled via the computers similar to a CPU fan speed.  This also allows the safety feature of auto shut down based on RPM feedback if available in your BIOS.
The Pump top is the same that is used with the reservoir versions (CP-RX-X-CT60) but this can be used as a stand alone unit as well. With a threaded reservoir mount on the top this unit can be upgraded later with just a reservoir tube and top.

In the box
  • 1x Bykski PMS5 Liquid Cooling 12V Pump - PWM Enabled 
  • PMS5 Pump Armor
  • 1x Top and Mounting System
If the gallery shows a parts diagram, that diagram is the source of truth for what ships.
Datasheet
Power12v / TDP10W
Voltage10v-15v
Power Connector4-Pin Molex
Speed Control/Data4-Pin PWM
Working Temp45C below 4000RPM
Max RPM4000
Maximum discharge~ 105.67 GPH (400 LPH)
Top MaterialPMMA
ThreadG1/4
Stand ColorBlack
Dimensions83mm x 82mm
Diameter78mm
SKUCP-RX-X

What buyers said

Left by people who bought this part here. Compatibility reports are the useful ones — if you fitted it, say which board.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

Questions people ask about this part

Answers specific to CP-RX-X. If yours isn't here, ask — we'd rather talk you out of the wrong part than sell you one.

What does this part fit?
This part is specified by what it connects to, not by a card model:
  • Loop:Aluminum or Non-Aluminum

Check those against your build before you order. If anything does not match, ask us first — it is cheaper than a return. Part number CP-RX-X.

Is it in stock, and when will it ship?
Yes — only 2 left in Boise, Idaho. Orders placed before 2:00 PM MST on a business day ship the same day — we do not ship weekends or US holidays. Overnight delivery is available at checkout.
Can I return it if it turns out not to fit?
Yes. Returns are accepted within 30 days and are easy to start in the support center. Unopened items can be returned for store credit with no restocking fee; other returns carry a restocking fee, higher for items that have been installed or used. So we would rather check the fit with you first: send us the model and we will check it against this part.
Will I pay import duties or customs charges on delivery?
Not on a US order. US import duties and tariffs are already included in the price, so nothing is collected at the door and there is no brokerage fee. Orders shipped outside the US may owe that country's customs fees and duties.
Who handles the warranty?
BYKSKI.US, the exclusive US distributor, from Boise, Idaho. Claims are handled domestically rather than returned to an overseas factory. Installation is at your own risk: we are not responsible for leaks or damage to other hardware.
Is shipping free?
Shipping is free on orders over $125 to addresses in the lower 48 US states.
Are printed instructions included?
No printed manual is included. Installation references are in the product gallery images, and the install guides on this site cover the process step by step.
Do I need anything else to use it?
Check the parts list above against what you already have. If you are building a loop from scratch, send us the full parts list and we will tell you what is missing before you order.

Ask us before you order

Send your exact hardware model and we'll confirm the right part before you spend $119.99 — or tell you honestly that this isn't the one.

Returns are accepted within 30 days and are easy to start in the support center. Unopened items can be returned for store credit with no restocking fee; other returns carry a restocking fee, higher for items that have been installed or used.

Ask about compatibility