Maelstrom D5 Series
Price: Starting at $145.95
Out of stock
Bulk shipping information: 20 Pcs/Ctn

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Product Description

Product Description

Maelstrom D5 is Swiftech's new Reservoir and Pump combo featuring the award winning MCP655-PWM (Laing/Xylem D5) pump built into Swiftech's new generation Maelstrom Reservoir.

The new Maelstrom reservoir features a smooth single profile square design. It is available in 4 different lengths: 50 mm, 100 mm, 200 mm and 300 mm. With this wide range of lengths to choose from, the Maelstrom D5 reservoir will find its own any type of custom liquid cooling build!

The Maelstrom D5 reservoir also comes with built-in ALED lighting compatible with Swiftech's IRIS Technology (Swiftech's Iris Eco controller available separately) which gives great flexibility when it comes to build truly custom computers.

Installation of the reservoir into the chassis is handled by Swiftech's custom mounting brackets which are also included in Swiftech's MCP655/D5 pump tops. These innovative and modders-oriented bracket allows for both bottom and side panel mounting.

System fill up is done through one of the two top G1/4" ports (2x plugs are included). The other port can be used as a return line port to give modders the flexibility of routing the most complex cooling loops, just plug the other return port with the included plug.

Award winning MCP655 / Laing D5

Swiftech's choice of pump for Maelstrom D5 is the award winning MCP655 / D5 PWM pump which has been the "go to" choice for Gamers, Overclockers and Modders alike. The Laing/Xylem D5 pump is a high reliability, high pressure industrial pump, featuring a 50,000 hour MTBF. Such reliability is enabled by its motor design, which contains only one moving part: the magnetically driven spherical impeller spins on a single ceramic bearing, thus extending the life of this pump beyond existing standards.

The MCP655-PWM is completely plug-and-play, and connects directly to the computer power-supply with a standard 4 pin power Molex connector. It also features speed control through direct PWM connection to the motherboard.

Tab 1

  • 50,000 hours MTBF (Mean Time Between Failure) equivalent to 5 years lifetime
  • Molex 4-pin connectivity: plugs into the computer power supply
  • High pressure capability, ideal for both complex and high flow loops
  • The pump speed can be adjusted using the motherboard PWM signal (CPU Fan header) to yield top performance or virtually silent operations
  • 4x G1/4" ports (including 2x top ports for both filling and return line)
  • 2x G1/4" plug included
  • Bottom and Side panel mounting, hardware included
  • Built-in ALED lighting, compatible with Swiftech's Iris Technology (Iris Eco controller sold separately)

Tab 2

MCP655 series performance Graph

"0-20 to 100%" denote the PWM settings on the MCP655-PWM models

"(B)" denotes the performance curve of the MCP655-B model

Tab 3

 Pump Specifications MCP655-PWM / Laing/Xylem D5-PWM
Nominal Voltage 12 V DC
Operating Voltage 8 to 24 V DC8 to 24 V DC
Nominal Power (@ 12 V) 24 W
Nominal Current (@ 12 V) 2 Amps
Speed control Via motherboard PWM CPU Fan signal - Note: pumps runs at full speed by default when PWM is not connected
RPM signal & range Yes - 800 to 4800 rpm
Motor Type Electronically Commutated DC Spherical Brushless Motor , with automatic overload protection and low in-rush current
Nominal Head (@12v) ~ 13 ft (4 m)
Nominal Discharge (@12v) ~ 330 Gph (1250 Lph)
Ports G 1/4  ports (4x) - 2x plugs are included
Maximum (working) Pressure 50 PSI (3.5 BAR)
Temperature Range 32 °F to 140 °F (0 °C to 60 °C)
Electrical Connector Molex 4-pin
PWM & RPM signal Mini 4-pin Fan-type



Tab 4

Installation of the reservoir into the chassis is handled by Swiftech's custom mounting brackets which are also included in Swiftech's MCP655/D5 pump tops.
These innovative and modders-oriented bracket allows for both bottom and side panel mounting.

MCP655 Exploded view

Important warranty information: the warranty on these products is 2 years. 


Tab 5

bjorn 3d seal of approval

Link to Bjorn 3D's article

"Operation of the MCP655 was vibration and, almost, noise free. With the side on the chassis, we couldn't hear the pump. And with the side off of the chasis and with Velcro the only thing holding the pump in place, we could barely hear it at all." October 2008

+  Great Performance
+  Extra Headroom For Overclocking
+  Delrin top removes aluminum from system (no mixed metals)
+  Fantastic retaining system (even if you do have to remove the mother board)
+  Excellent craftsmanship
Maelstrom D5 Series

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End User Reviews

(7 Ratings, 1 Review) Average Rating:
i ordered 2 of these cause they are so cool
Devin Dannemann (O Fallon, MO) 3/16/2018 1:13 PM
This has got to be the best Pc Water cooling company out there, with quality parts and they got staff/Tech support thats even better than their products that are more than ready to call/email or are on the ready to help you, Shout out to Tech support Mac K. for all the help and questions you have helped me with so far that guy has helped me so much with all my questions and can ensure you if you have a problem he will help you fix it or help walk you through what you need done! I have bought 2 m5 Maelstrom pumps and a komodo Gpu waterblock 1080ti and they all came packaged with packing peanuts and triple A shipping so you know your product wont get damaged and the shipping was fairly quick as well u can pick your shipping times aswell; and the product looks amazing i cant wait to finish my build and show you all some pictures and this stands at a 7 inches tall and comes with two brackets and is solid as a rock with some awesome LEDS and i would recommend this product to anyone 5 stars

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