KHACHIMO PWS-1K81P-1R 1800W ATX power supply

High-output ATX unit

The KHACHIMO PWS-1K81P-1R is an 1800W ATX power supply built for systems that draw sustained heavy loads. It targets workstation builders and multi-GPU configurations where standard units fall short. The unit is new and has been test-working at the supplier.

Straightforward ATX fit

Installation follows the normal ATX form factor so it mounts in any compatible chassis without adapters. The main requirement is verifying that your case provides enough depth for a high-wattage unit. Cable routing is standard; the only common issue is underestimating the physical length needed for clean airflow.

1800W continuous headroom

At 1800W the supply comfortably powers dual high-end graphics cards, large core-count CPUs and multiple drives simultaneously. Headroom remains generous for transient spikes during render or compute workloads. It runs out when the combined draw exceeds the rated maximum or when the chassis cannot move the heat generated at that level.