The MCP35X™ pump is a substantial evolution from the long established MCP355 series. It differentiates itself from its sibling by two primary features. The MCP35X Swiftech pump housing has been redesigned to provide considerably enhanced hydraulic performance is compatible with multiple tubing options thanks to the adoption of the G1/4 port standard can host an optional "built-in" reservoir is also sold separately, and remains compatible with all MCP3XX series pumps. The motor is now PWM compatible, allowing variable speed control thru the motherboard from 1300 to 4500 rpm.

• Small Footprint: 2.4" x 2.4" x 1.36";
• 50,000 hours MTBF (Mean Time Between Failure) ;
• 12 Volts DC convenience: plugs into the computer power supply
• Variable speed control via PWM thru the motherboard, from 1300 rpm for completely silent operation, to 4500 rpm for ultra high flow performance;
• Superior head pressure and flow rate (in the useable range) to any pump in its footprint: the MCP35X™ is particularly well adapted to support multiple devices in the same loop, such as multiple radiators, and/or waterblocks;
• G1/4" ports standard for compatibility with a large assorment of fittings;
• No maintenance when used with distilled water, and anti-fungal additives (our HydrX™ additive is recommended);
• Quick installation with adhesive neoprene pad, or permanent installation with supplied hardware;
• Optional "built-in" reservoir;
• 2 year warranty

Motor type:	Electronically commutated, brushless DC, spherical motor
Nominal voltage:	12 V DC
Operating voltage range:	9 to 13.4 VDC
Max. nominal power (@12 V):	18 W
Max. nominal current (@12 V):	1.5 A
Max. nominal head (@12 V):	14.7 ft (4.4m)
Max nominal discharge (@12 V):	~ 4.75 GPM (17.5 LPM)
Maximum pressure:	22 PSI (1.5 BAR)
Temperature range:	Up to 140°F (60°C)
Electrical power connector:	Molex 4 pin
PWM + RPM Signals:	4-pin connector
RoHS:	Compliant
Port thread standard:	G1/4
MTBF:	50,000 Hours
Included:	MCP35x Pump Mounting Foam Mounting Screws 2 x G1/4 barbs

05-23-2012
Reviewer: Benchalo (1)
Just wanted to say that, this pump is worth its price in gold...solid pump and quiet..

03-11-2012
Reviewer: cbgoding (1)
Running a XTL block, QP320 rad, and this pump on an i5-2500k @ 5.1GHz. Under prime95, the pump speeds up a bit, but remains quiet, keeping cores under 65C. Totally inaudible while cpu idles. Incredible.

03-08-2012
Reviewer: jns (22)
PWM control is amazing. I literally can''t tell if it''s on or not when the computer is idling or if I''m just surfing the web, but it has more than enough power when needed. Small and easy to mount.

10-31-2011
Reviewer: iownthisthing (2)
i heard it running at first. once all the air was out of the loop it got damn near silent. plenty of power and no issues with threading fittings. it is perfect for my needs. 2 gpu''s in sli, the cpu and dual 180mm res. flow is good and my temps or great.

09-09-2011
Reviewer: Midwest (6)
The pump meets the needs for my GPU + CPU WC setup. The PWM is critical; at idle, the processors run about 30 degrees with the pump almost completely silent. Without the PWM, the pump runs at 100% and is and is as loud as my system prior to setting up WC. My only complaint is not so much with the pump as it is with my motherboard and system; I cannot get a smooth escalation of the pump with increasing temps. I did not have problems with the threading. Everything fits well and seals right.