Supplied in 1U format measuring 2.15 x 1.57 in., 9 in. long D1U54P-W-650-12-HBxC series has 21.4 W/in.³ power density and exceeds 80 PLUS Platinum efficiency requirements. Hot-pluggable power supplies, featuring single 12 Vdc primary supply, also provide standby 12 Vdc/2 A output and are capable of N+1 redundancy. Active current sharing allows for connecting up to 8 units in parallel. Other features include I²C-compliant PMBus™ interface, various protections, and low-noise, variable-speed fan.