Server Series · Low ProfileOC-H06S Server Water Pump
40 mm Tall · 450 L/h · 3 m Head · 2510 4-Pin Plug & Play
A sealed metal-bracket pump for 1U/2U rack servers, high-density workstations and compact ITX loops. No Molex adapter needed.
40 mm1U/2U FRIENDLY450 L/h119 GPH3.0 m9.8 FT HEAD4-Pin2510 DIRECT
Please read before ordering:
- Pump only — no reservoir included.Your loop needs a separate reservoir or fill port to prime and bleed.
- Connect to a high-current header.Plug intoW_PUMP+,AIO_PUMPorCPU_FAN. Avoid low-current chassis fan headers and never use a splitter.
- Both ports are on the same side.Plan your tubing runs around a side-exit layout, not a top-exit one.
- Do not run it dry.Fill and bleed the loop before first power-on.
- Fittings, tubing, coolant, radiator and water blocks areNOT included.
Technical SpecificationsModelOC-H06S (low-profile server series)Pump TypeSealed inline pump, pump only (no reservoir)Working VoltageDC 12 V (operating range 8–13.2 V)Max Flow Rate450 L/h (7.5 L/min / 119 GPH)Max Lift Head3.0 m ± 10% (9.8 ft)Inlet / OutletDual G1/4″ female, both on the side faceInterface2510 small 4-pin — PWM + FG speed signalPower SourceMotherboard fan header (no Molex adapter required)HousingPOM top cap + PPS body, heat and chemical resistantMounting BracketIntegrated metal bracket, pre-drilled screw holesDimensions89 × 73 × 40 mm (3.50 × 2.87 × 1.57 in)LightingNoneStandardsCE / RoHS certified2510 4-Pin WiringPin 1Ground (black)Pin 2+12 V DC power (red)Pin 3FG tachometer — RPM response to the motherboardPin 4PWM — speed regulation from the BIOS fan curve
Plugs straight into CHA_FAN, SYS_FAN, CPU_FAN or W_PUMP. The FG wire lets the motherboard raise a warning if the pump stalls or the loop blocks.
What’s in the Box1 × OC-H06S Water Pump with integrated metal bracket4 × M3×8 mm installation screws1 × Standard 2510 4-pin motherboard cable
Reservoir, fittings, tubing, coolant, radiator and water blocks are sold separately and are not included.
Why Choose This Pump40 mm Flat Body
Fits under a 1U/2U chassis cover, inside a GPU shroud or behind an ITX motherboard tray.Direct 2510 Header Connection
No Molex adapter, no extra cable clutter — one plug for power, RPM and PWM control.POM Cap + PPS Body
Engineering plastics that resist coolant, heat and long-term creep in 24/7 server duty.Integrated Steel Bracket
Pre-drilled mounting holes and vibration-damped fixing for rack rails and case floors.Dual Side G1/4″
Both ports exit the same face, so tubing stays tight against the chassis wall in dense builds.Coolant-Only, Sealed Loop
Runs on standard PC coolant with no lubrication schedule and no maintenance disassembly.Compatibility & Best Use
- Built for single-CPU server cold plates, 1U/2U rackmount loops, GPU mining racks and compact ITX builds.
- G1/4″ threads take soft-tube barbs, compression fittings and quick disconnects.
- 3.0 m head suits a single block plus one radiator. It is not intended for multi-block, high-restriction loops.
- Requires a reservoir or fill port elsewhere in the loop — this is a pump only.
FAQ
Does it need a Molex power cable?
No. The 2510 4-pin cable supplies 12 V, ground, RPM and PWM from a single motherboard header.
Which header should I use?
W_PUMP+ or AIO_PUMP if your board has one, otherwise CPU_FAN. Avoid low-current chassis headers and avoid splitters.
Is a reservoir included?
No. This is a pump only, so the loop needs a reservoir or fill port to prime it.
Can it cool a CPU and a GPU together?
It is designed for a single block plus one radiator. For dual-block loops choose a higher-head pump.
OC-H06S · SERVER WATER PUMP · 40 MM
Every unit is tested before packing. Shipping, returns and warranty are handled according to the terms shown on this listing.
