HPE 800W Flex Slot Platinum Hot Plug Power Supply

The HPE 800W Flex Slot Platinum Hot Plug Power Supply (P03178-B21) is a high-efficiency AC power supply module engineered for HPE ProLiant Gen10 and Gen11 rack servers. Built around the Flex Slot form factor, it integrates directly into the server chassis power bay without tools or system downtime, enabling live replacement of a failed or degraded unit while the server continues full production operation. The 80 PLUS Platinum efficiency rating — reaching up to 94% efficiency under typical 50% load conditions — significantly reduces heat output and facility power consumption compared to Gold-rated predecessors, making it well-suited to data centers operating under strict PUE targets.

The module supports HPE's hot-plug redundant power architecture when paired with a second Flex Slot PSU in the same chassis, providing N+1 power redundancy that eliminates the PSU as a single point of failure. Each unit draws from a standard 200–240 V AC input range, making it compatible with international PDU infrastructure without manual voltage selection. The 800 W continuous output capacity covers the full thermal and electrical envelope of mid-range to high-configuration ProLiant Gen10/Gen11 platforms, including those equipped with high-core-count Intel Xeon Scalable or AMD EPYC processors and multiple NVMe or SAS storage devices.

Designed for enterprise operational requirements, the P03178-B21 is managed through HPE iLO and the server's Intelligent Power Discovery subsystem, which monitors real-time power draw, inlet voltage, output current, and thermal status. This telemetry feeds into HPE OneView and third-party DCIM platforms via SNMP and Redfish APIs, enabling capacity planning, predictive maintenance alerting, and energy reporting at the individual PSU level. The module's compact Flex Slot form factor is shared across multiple HPE power tiers, simplifying spare-parts inventory management across heterogeneous ProLiant fleets.

Ideal for

• N+1 redundant power protection for ProLiant Gen10/Gen11 servers in mission-critical production environments where unplanned downtime is unacceptable
• Live field replacement of a degraded or failed PSU in a running server during peak business hours without scheduling a maintenance window
• High-density rack deployments where 80 PLUS Platinum efficiency reduces per-rack heat load and lowers cooling overhead in constrained data center facilities
• Consolidating PSU spare inventory across a mixed ProLiant Gen10 and Gen11 fleet by standardizing on a single Flex Slot form factor module
• Energy reporting and power budgeting initiatives that rely on per-PSU telemetry exposed through iLO, HPE OneView, and Redfish-compatible DCIM tools
• Refresh of older Gold-rated PSUs in existing ProLiant chassis to improve efficiency ratings and reduce total facility power consumption without full server replacement

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.