OC-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 mm 1U/2U FRIENDLY | 450 L/h 119 GPH | 3.0 m 9.8 FT HEAD | 4-Pin 2510 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 into W_PUMP+, AIO_PUMP or CPU_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 are NOT included.
Technical Specifications
| Model | OC-H06S (low-profile server series) |
| Pump Type | Sealed inline pump, pump only (no reservoir) |
| Working Voltage | DC 12 V (operating range 8–13.2 V) |
| Max Flow Rate | 450 L/h (7.5 L/min / 119 GPH) |
| Max Lift Head | 3.0 m ± 10% (9.8 ft) |
| Inlet / Outlet | Dual G1/4″ female, both on the side face |
| Interface | 2510 small 4-pin — PWM + FG speed signal |
| Power Source | Motherboard fan header (no Molex adapter required) |
| Housing | POM top cap + PPS body, heat and chemical resistant |
| Mounting Bracket | Integrated metal bracket, pre-drilled screw holes |
| Dimensions | 89 × 73 × 40 mm (3.50 × 2.87 × 1.57 in) |
| Lighting | None |
| Standards | CE / RoHS certified |
2510 4-Pin Wiring
| Pin 1 | Ground (black) |
| Pin 2 | +12 V DC power (red) |
| Pin 3 | FG tachometer — RPM feedback to the motherboard |
| Pin 4 | PWM — 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 Box
| 1 × OC-H06S Water Pump with integrated metal bracket |
| 4 × M3×8 mm installation screws |
| 1 × Standard 2510 4-pin motherboard cable |
Reservoir, fittings, tubing, coolant, radiator and water blocks are sold separately and are not included.
Why Choose This Pump
| 40 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.