The HP 643954-201 (also referenced as HSTNS-PL28) is a 460-watt hot-swappable Common Slot (CS) power supply unit designed for HP ProLiant Gen8 servers, with backward compatibility to select G6 and G7 platforms. It converts 100–240V AC input into a regulated 12V DC output, powering server components such as CPUs, memory, storage, and I/O subsystems. Built with 80 PLUS Platinum efficiency, it is engineered for enterprise environments requiring reliable, redundant, high-uptime power delivery, and is one of the standard power supply options for the ProLiant DL380p Gen8 server family.
Key Features
- 460W hot-swappable Common Slot (CS) power supply
- 80 PLUS Platinum efficiency rating (up to 94% energy efficiency)
- Wide input voltage range: 100-240V AC, 50-60Hz
- Integrated smart fan cooling with variable-speed control
- Supports Power Line Communication (PLC) for system monitoring
- Compatible with server management monitoring via PMBus/I²C on supported backplanes
Technical Specifications
- Manufacturer: HP / HPE
- Part Number: 643954-201
- Alternate Reference: HSTNS-PL28
- Product Type: Server power supply unit (hot-plug)
- Power Capacity: 460 Watts
- Input: 100-240V AC, 50-60Hz, 6.3A
- Output: +12V @ 38.3A max, +12VSB @ 2.5A max
- Efficiency Class: 80 PLUS Platinum
- Dimensions: 86mm x 38mm x 197mm
- Weight: approximately 3.31 lb (1.5 kg)
- Compatible Servers: ProLiant DL160 G8, DL320e G8, DL360 G8/G8p/e, DL380 G8/e/p, DL385p G8, DL388p G8, ML350 G8/e/p (HP Gen8 family); also referenced as compatible with select G6/G7 Common Slot platforms
90 DAY'S
