Water block Alphacool 25668 Black 49.9mm x 95.9mm x 14mm

The Alphacool 25668 Black water block is a compact cooling component designed for integration into custom liquid cooling loops. Measuring 49.9mm × 95.9mm × 14mm, the block presents a low-profile form factor in a matte black finish that fits into constrained spaces while offering a dedicated thermal transfer surface. With a rated thermal power of 22.5W, this single-unit, boxed product is intended for targeted cooling of electronics within a PC cooling loop.

Advantages

The water block combines a compact footprint with a flat, 14mm height profile to allow installation in tight chassis or close to adjacent components. Its black surface reduces visible reflections and provides a neutral appearance suitable for varied system builds. The rated thermal power indicates capability for consistent, low-to-moderate heat removal when integrated into a properly configured liquid cooling loop. Packaged as one unit in a box, it is convenient to store and handle prior to installation.

Suitable for

• Compact PC builds where low-profile cooling components are required
• Custom liquid cooling loops for targeted cooling of small components or PCB areas
• Systems requiring a discreet, matte black cooling element

Key specifications

• External dimensions: 49.9 mm (width) × 95.9 mm (depth) × 14 mm (height)
• Color/finish: black (matte appearance)
• Rated thermal power: 22.5 W
• Package type: single unit in box
• Form factor: low-profile water block for liquid cooling integration

How to use

Integrate the water block into an existing or new liquid cooling loop by mounting it to the target component or area on the circuit board where thermal transfer is required, following manufacturer-recommended mounting positions and fastener torque. Connect inlet and outlet ports to the loop tubing using compatible fittings and secure all connections to prevent leaks. Fill the loop with an appropriate coolant and perform leak testing before powering the system. Monitor temperatures after installation to confirm effective heat transfer and adjust flow rate or loop configuration if needed.

Recommendations

Use compatible fittings and tubing diameter to ensure secure connections; employ coolant formulations recommended for PC liquid cooling to prevent corrosion and biological growth. Verify clearance in your case for the 14 mm height and confirm that pump and radiator capacity match the intended thermal load for reliable operation.