Call a Mac expert! 888-769-7629
Your Shopping Cart Your Shopping Cart: 0 Items

Your cart is empty.

640 Redundant Extrnal Ps Shelf / Mfr. Item No.: J9805a

640 Redundant Extrnal Ps Shelf / Mfr. Item No.: J9805a
Qty. Available: 10+
Item Number: hew-j9805a
Vendor Number: J9805A
Vendor: Hewlett Packard
Free shipping on this item
Chat with or call a Mac expert at 1-888-769-76291-888-769-7629
Shipping: Usually ships within 24 hours.
The HP 640 Redundant/External Power Supply Shelf is used with the HP 2920 Switch Series to provide redundant power to back up internal power supplies in the switches, as well as provide external power for applications where additional power is required, as in PoE+ applications. Unit ships ready to be populated with at least one optional power supply and power cable, purchased separately.


Three modular power supply slots: Supports redundant power for up to eight HP 2920 Switches: protects against internal switch power supply failures. Supports external power allowing up to three HP 2920 48 Port PoE+ Switches to support 1440W of PoE+ power : allows all 48 ports of a PoE+ switch to offer 30W of PoE+ power at the same time.

External redundant power supply: provides high reliability

Easy configuration: provides full management features, available through connected HP 2920 Switches

Three power supply module slots: allows failure of a power supply in one bay to not affect the other two power supplies

General Information

ManufacturerHewlett Packard Enterprise
Manufacturer Part NumberJ9805A
Manufacturer Website Address
Product Model640
Product Name640 Redundant/External Power Supply Shelf
Packaged Quantity1
Product TypeRedundant Power Supply

Technical Information


Power Description

Output Power1.44 kW

Physical Characteristics



CompatibilityHP 2920 Switch Series
Green CompliantYes
Green Compliance Certificate/AuthorityREACH