High-Performance DDC SeriesOCOCOO OC-H09A DDC Water Pump
720 L/h · 6 m Head · CNC POM Top · Aluminum Heatsink Base

A 62 mm square DDC pump with a machined POM head and a finned aluminium base, built for high-restriction custom loops.

720 L/h190 GPH / 12 L/MIN6.0 m19.7 FT HEAD62 mmSQUARE FOOTPRINTPOMCNC MACHINED TOP

Please read before ordering:

• Pump only — no reservoir included.Your loop needs a separate reservoir or fill port to prime and bleed.
• Product photos show a complete loop for illustration.Motherboard, CPU water block, radiator, hard tubing and fittings are NOT included.
• Power comes from the PSU.The large 4-pin Molex supplies 12 V; the small 4-pin cable carries PWM and RPM only. The pump will not run on the small connector alone.
• Top port is the inlet, side port is the outlet.Reversing it aerates the loop and costs flow.
• Do not run the pump dry. Fill and bleed the loop before first power-on.

Technical SpecificationsModelOC-H09APump TypeHigh-performance DDC, pump only (no reservoir)Working VoltageDC 12 V (operating range 8–13.2 V)Max Flow Rate720 L/h (12 L/min / 190 GPH / approx. 3.2 GPM)Max Lift Head6.0 m ± 0.5 m (19.7 ft)Pump TopCNC machined POM — wear and chemical resistantHeatsink BaseBlack aluminium alloy with integrated cooling finsMotor3-phase DC brushless, 30,000+ hoursSpeed ControlPWM + FG tachometer (small 4-pin)Power InterfaceLarge 4-pin Molex, dedicated 12 V from the PSUInlet / OutletStandard G1/4″ — top = IN, side = OUTProtectionReverse polarity and over-current protectionDimensions62 × 62 × 45 mm (2.44 × 2.44 × 1.77 in)MountingAdhesive pad + 4 × M3 screw holesStandardsCE / RoHS certifiedTwo Cables, Two JobsLarge 4-pin MolexRed +12 V, black ground. Straight from the PSU, so the pump never loads a motherboard fan header.Small 4-pin (PWM / FG)Plugs into CPU_FAN, SYS_FAN or W_PUMP for thermal speed control and RPM readout.

Both must be connected. Reverse polarity and over-current protection are built in, but the pump still needs coolant in the loop before it is powered.

What’s in the Box1 × OCOCOO OC-H09A Water Pump1 × Heavy-Duty Double-Sided Adhesive Tape4 × M3×6 mm Base Installation Screws

G1/4″ fittings, tubing, coolant, reservoir, radiator and water blocks are sold separately and are not included.

Why Choose This PumpCNC Machined POM Top
Machined rather than moulded, so the port threads and sealing faces hold up to repeated fitting changes.Aluminium Finned Base
The alloy base doubles as a heatsink, pulling motor heat away during long sessions.720 L/h at 6 m Head
Enough pressure for a CPU block, a GPU block and two radiators in one loop.62 mm Square Footprint
A compact DDC body that fits behind a tray, under a shroud or on a distribution plate.Dedicated Molex Power
High-current 12 V straight from the PSU, with PWM control and RPM response to the board.3-Phase Brushless Drive
Low-vibration running, rated for 30,000+ hours and 24/7 workloads.Compatibility & Best Use

• Standard G1/4″ ports accept compression fittings, barbs and quick disconnects.
• Suited to CPU-only loops up to CPU + GPU loops with two radiators.
• Fits mid-tower, SFF and open-frame builds where a 62 mm square pump will clear.
• Requires a reservoir or fill port elsewhere in the loop — this is a pump only.

FAQ

Is the CPU block or radiator included?
No. They appear in the photos to show a finished loop. The box contains the pump, an adhesive pad and four M3 screws.

Which port is the inlet?
The top G1/4″ port is the inlet; the side port is the outlet.

Can it run from a fan header alone?
No. The Molex connector supplies the 12 V power. The small 4-pin plug only carries PWM and RPM.

Does it have RGB?
No. This model has no lighting.

OCOCOO OC-H09A · DDC WATER PUMP · 720 L/H

100% tested before shipping. Shipping, returns and warranty are handled according to the terms shown on this listing.