Alphacool 17451 computer cooling system part/accessory – replacement cooling component

Alphacool 17451 is a replacement cooling component designed for PC builders and system maintainers who require precise alignment and reliable assistance when modifying cases or installing bulkhead fittings. The product, known as the Eiszapfen laser fitting, integrates a G1/4" threaded connection for straightforward installation into water-cooling blocks and includes a 50 cm cable terminated with a 4-pin Molex connector to power the built-in alignment laser. Also supplied is an ATX jumper plug that allows powering a PSU outside a complete system, enabling work on fittings and drill alignment on the workbench.

Advantages

The Eiszapfen laser fitting provides accurate visual guidance for drilling holes opposite existing G1/4" ports, reducing the risk of misalignment when installing bulkheads or routing tubing through panels. Its G1/4" thread ensures compatibility with common water-cooling ports, while the 50 cm cable with a 4-pin Molex connector offers convenient power connection to standard PC power supplies. The included ATX jumper plug enables testing and laser use without a complete PC, facilitating quick and safe preparation of panels and chassis.

Suitable for

• Aligning and drilling panel holes opposite G1/4" ports in custom PC cases
• Installing or replacing bulkhead fittings and pass-through connectors
• Maintenance and repair of DIY liquid-cooling loops and radiator connections
• Bench setup where the PSU must be powered independently for alignment tasks

Key specifications

• Thread connection: G1/4" compatible for direct installation into water-cooling blocks
• Alignment aid: integrated laser for precise visual drilling reference
• Power cable: 50 cm cable with 4-pin Molex connector for PSU connection
• Accessories included: ATX jumper plug to start a power supply without a full PC

How to use

Install the Eiszapfen laser fitting into the target water-cooling block or G1/4" threaded port and connect the 4-pin Molex cable to a powered 4-pin Molex output from a PSU, or use the supplied ATX jumper plug to start the PSU independently on a bench. Position the panel or chassis where you need the opposing hole and observe the laser point to mark the exact drilling location. Drill the panel carefully at the marked position, then install the bulkhead fitting or pass-through connector, ensuring seals and fittings are tightened according to the cooling component manufacturer’s instructions.

Recommendations

Use the Eiszapfen laser fitting only with appropriate safety precautions: secure the panel before drilling, avoid direct eye exposure to the laser beam, and power the laser from a stable PSU source using the 4-pin Molex connector or the included ATX jumper. Verify thread compatibility and sealing before reintroducing coolant to the system.