Bitspower CR420 Reservoir Slim Edition

The Bitspower CR420 Reservoir Slim Edition is a 420mm clear acrylic reservoir with an integrated Bitspower K1M pump, designed for the tight spaces in a case where a full-depth reservoir will not fit. The slim profile opens up mounting positions that would otherwise be unavailable. The clear acrylic body showcases the coolant from every angle, with the preinstalled Digital RGB lighting module enhancing the color and depth of the fluid throughout the unit.

The integrated Bitspower K1M pump, rated at 12V DC and capable of being powered via the fan header on your motherboard, delivers great flow with barely any audible noise level. G1/4" threaded ports at the top and bottom of both sides of the reservoir provide plenty of inlet and outlet connections for loop routing. The lighting module is compatible with ASUS AURA Sync, GIGABYTE RGB Fusion 2.0, MSI Mystic Light Sync, ASRock Polychrome, BIOSTAR VIVID LED DJ, and Razer Chroma.

Because 140mm fan mounting patterns are the common hole spacing inside most cases, the bracket holes on the CR Reservoirs align directly with those holes, allowing installation into an existing 420mm radiator bay without modification. The unit ships with two sets of black anodized aluminum mounting brackets (13mm and 42mm) for flexible case installation, along with a Bitspower Pump Switch 24-pin Bypass Connector. The bypass connector powers the pump directly from the PSU, allowing the loop to be prefilled and primed before the system is powered on.

Key Features

*      Integrated K1M Pump: 7.7 LPM max flow, 8.4W, 24dBA, 15,000-hour MTBF.

*      Slim 48.5mm Profile: Installs in tight case spaces where a full-depth reservoir will not fit. Bracket holes align with 140mm fan mounting patterns for direct radiator-bay installation.

*      Full Clear Acrylic Body: Premium acrylic construction allows coolant visibility from every angle, enhanced by the integrated DRGB lighting module.

*      Preinstalled Digital RGB Lighting Module: Addressable LED strip housed along one side of the reservoir, compatible with major motherboard synchronization software.

*      G1/4" Threaded Ports: Standard thread for inlet and outlet loop routing.

*      Dual-Size Mounting Brackets: 13mm and 42mm black anodized aluminum brackets.

*      Pump Switch Included: 24-pin bypass connector for prefilling and priming the loop from the PSU.

Specifications

*      Model: Bitspower CR420 Reservoir Slim Edition

*      SKU: BPM-WTCR420S

*      Dimensions: 420 x 147 x 48.5 mm (L x H x D)

*      Body Material: Clear acrylic

*      Pump: Bitspower K1M (integrated)

*      Pump Rated Voltage: 12V DC

*      Pump Operating Voltage: 8 ~ 16V

*      Pump Rated Current: 0.7A

*      Pump Power Consumption: 8.4W

*      Pump Maximum Flow: 7.7 LPM

*      Pump System Temperature: -25 ~ 80 °C

*      Pump Noise Level: 24dBA

*      Pump MTBF: 15,000 hours

*      Port Threading: G1/4"

*      Lighting: Digital RGB (addressable), preinstalled lighting module

*      RGB Compatibility: ASUS AURA Sync, GIGABYTE RGB Fusion 2.0, MSI Mystic Light Sync, ASRock Polychrome, BIOSTAR VIVID LED DJ, Razer Chroma

*      Mounting Brackets: 13mm and 42mm (black anodized aluminum)

In the Box

*      Bitspower CR420 Reservoir Slim Edition (x1)

*      Mounting brackets, 13mm (x2)

*      Mounting brackets, 42mm (x2)

*      Bitspower Pump Switch 24-pin Bypass Connector with Signal Option Cables (x1)

*      Mounting screws and hardware