Product Overview:
The HPE 500W Flex Slot Power Supply (865398-001 / 865399-001 / 865408-B21 / 866729-001) is a high-efficiency, hot-plug power module designed for HPE ProLiant servers. Built with Flex Slot technology, it delivers reliable power while optimizing energy efficiency and reducing operational costs in enterprise and data center environments.
This power supply is ideal for maintaining system uptime and supporting scalable server configurations with dependable, redundant power capabilities.
Product Details
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Brand: Hewlett Packard Enterprise (HPE)
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Part Numbers: 865398-001 / 865399-001 / 865408-B21 / 866729-001
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Power Output: 500W
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Type: Flex Slot Power Supply / Power Module
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Form Factor: Flex Slot (hot-plug)
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Input: Standard AC input
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Efficiency: High-efficiency design (80 PLUS certified, model dependent)
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Compatibility: HPE ProLiant servers supporting Flex Slot PSUs
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Condition: Used / refurbished, fully tested and functional
Key Features
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500W reliable power output for enterprise servers
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Flex Slot design for improved power density and efficiency
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Hot-plug capability for easy replacement without downtime
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Supports redundant power configurations (in supported systems)
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Optimized for HPE ProLiant server environments
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Energy-efficient operation to reduce power consumption
Compatibility
Ideal for:
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HPE ProLiant Gen9 and Gen10 servers (Flex Slot compatible models)
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Data center and enterprise server deployments
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Redundant power supply configurations
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Server maintenance and upgrades
Ensures seamless integration with HPE-certified server hardware.
Condition & Testing
Unit is in used condition and may show minor cosmetic wear such as light scratches or handling marks.
Fully tested, inspected, and confirmed to be 100% operational.
Why choose us?
TDS has a successful track record of delivering high-quality IT solutions to businesses of all sizes. Hubs in Canada, the USA and India - We provide you with the parts you need when you need them, and at the best possible price.
For high quantity orders, click here!
Product warranty
Trade Development Strategies will happily honour any valid warranty claims. The product warranty is 30 days. Once the warranty claim is confirmed, you will receive the choice of:
(a) refund to your payment method
(b) a refund in-store credit
(c) a replacement item sent to you (if stock is available)
Estimated Shipping times
Orders are usually dispatched within 2 business days of order confirmation.
For Domestic Shipments: FedEx Express Saver®, FedEx 2Day®, FedEx Standard Overnight®, and FedEx Priority Overnight®
For International Shipments: FedEx International Priority® and FedEx International Economy®
Proceed to checkout for detailed delivery times, pricing and shipping options. Please note that shipping cost doesn’t include duties and customs fees.
Returns and refunds
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it. You’ll also need the receipt or proof of purchase.