Introducing the MCP355™ pump: despite a remarkably small footprint of 2.4" square, the MCP355 features an astounding 20ft of head to provide superior flow rates in today's most complex liquid cooled systems. The MCP355 is also a high reliability, high pressure industrial pump, featuring a 50,000 hour MTBF (5 year lifetime). Such reliability is afforded by the unique design of this pump, which contains only one moving part: the magnetically driven rotor/impeller spins on a single ceramic bearing, thus extending the life of this pump beyond existing standards.

The pump is completely plug-and-play, and connects directly to any computer power-supply through standard 4 pin power connectors. It's compact and powerful motor make it ideally suited for extreme duty cooling in environments where space is at a premium.

Retention Mechanism:

The MCP355™ can either be installed with the built-in neoprene pad featuring a peel-off adhesive back, or permanently with thru-bolts.

A Note of Caution! the MCP355 generates higher audible noise than the MCP350 and MCP655 pumps. This product is not recommended for users seeking silent operations.

Users are reminded that disassembling their pump for any reason, including for the purpose of upgrading the housing, automatically voids the pump warranty. (Excludes Swiftech Pump Accessories)

Note The fittings option is for users who have selected the optional tops in the options below. Fittings themselves will not fit onto pump directly.

Users are reminded that disassembling their pump for any reason, including for the purpose of upgrading the housing, automatically voids the pump warranty. (Excludes Swiftech Pump Accessories)

• Small Footprint: 2.4" x 2.4" x 1.5"
• 50,000 hours MTBF (Mean Time Between Failure) equivalent to 5 years lifetime.
• Superior 12 Volts DC convenience: plugs into the computer power supply
• The MCP355™ can be used with full confidence in any MP servers, and high-end workstations.
• Superior real world performance thanks to its high pressure characteristics (20ft of head). The MCP355™ is particularly well adapted to the proliferation of daisy-chained liquid cooling devices in a single circuit: Multiple Processors, Chipset, Graphics, and Hard Drives.
• 3/8" barb fittings.
• No maintenance when used with de-mineralized water, and anti-fungal additives (Our HydrX™ additive is recommended)
• Quick installation with adhesive neoprene pad, or permanent installation with screws and grommets.
• RPM sensor plugs to 3 pin motherboard fan connectors and reports impeller rotational speed

Nominal voltage:	12 V DC
Operating voltage range:	8 to 13.2 VDC
Minimum starting Voltage:	9 VDC
Nominal power (@ 12 V):	18 W
Nominal current (@ 12 V):	1.46 amps
Nominal head (@ 12 V):	20.2 ft (6.1 m)
Nominal discharge (@ 12 V):	~ 120 GPH (454 LPH)
Connection size:	3/8" barbs (10mm)
Maximum pressure:	22 PSI (1.5 BAR)
Temperature range:	Up to 140°F (60°C)
Power connector:	Molex 4 pin
Weight:	7.3 oz (207 gr.)
Swiftech's noise measurement:	30 ~ 32 dBA in a quiet room @ 2' (non lab environment)
Motor type:	Electronically commutated, brushless DC, spherical motor
Pump MTBF:	50,000 Hours (Mean Time Between Failures)
RPM Sensor:	3 pin connector

01-03-2011
Reviewer: qbical (6)
Great pump but it does run pretty warm. I also have a MCP350 and that too is a great pump and runs much cooler.

01-09-2009
Reviewer: AcuraRiders1325 (1)
I am using this pump on my watercooled Xbox 360. When it starts up, as soon as I turn on my Xbox 360, you hear it very slightly but after that you won''t even notice it. This pump runs extremely great. I got the different top for it so I could use different fittings and that is as easy as removing the old top with four screws and putting the new one on. I play Call Of Duty 4 on Xbox Live with my gamertag PrivateCreamPie. My old gamertag was SLICKPLAYER. When I am not at work and have nothing to do I play my Xbox 360 and I have had many ten hour gaming sessions with my real life friends over Xbox Live. Send me a message if you want to see picture of my Xbox. I have a Vision Camera.

06-08-2008
Reviewer: SINneR (3)
GET THIS.. I order THREE (3) of these from Koolance.com, and ALL 3 failed within 4 minutes!! I order 2 new ones from here, and they work great!!!! It''s a good, powerful pump for its small size. Thank you FrozenCPU!