This item, 437573-B21, is the HPE option part number for the product described as 1200W-48V DC Common Slot Power Supply. Further details below.
HPE Option Part #: 437573-B21
HPE Spare Part #: 451816-001
PRODUCT SPECIFICATIONS FOR 437573-B21:
- Type: Common Slot
- Input voltage: 48VDC
- Power output: 1200W
- Efficiency: 89%
- Dimensions (W x D x H): 1.5 x 3.4 x 7.5 in (3.81 x 8.63 x 19.05 cm)
- Weight: 3 lb (1.36 kg)
COMPATIBLE WITH:
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
HPE PARTSURFER INFO FOR 437573-B21
| Spare PN | Description | |
|---|---|---|
 | 437962-001 | DC power supply cord |
| 451816-001 | 1200 watt DC Common Slot (CS) hot-plug power supply - Does not support Power Discovery Services (black plug) - 89% efficiency, input voltage range 36-72 - Mixing of power supplies in the same server is not supported, must be the same spare part number |
Last updated: 3/24/2026
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This product is warrantied against hardware failure for a period of 1 Year from the date of purchase. Before making a purchase, please take a moment to review our return policy below.
Returns
It is the customer's responsibility to verify compatibility with their machine(s) before placing an order. If an item is ordered by mistake, it can be returned for refund, minus a 25% restocking fee, within 5 business days of receipt. The cost of freight is not refundable.
Please be aware that factory-sealed equipment can only be returned if it remains unopened.
Defective Products
If you have received a defective part and your machine is still within the HPE warranty period, please initiate a warranty exchange by visiting the HPE Enterprise Support Center. Be sure to have the serial numbers of the defective drive and your server/storage array handy.
In case your hardware becomes defective during the Global One warranty period, but the HPE warranty has expired, you can return the product to us for a working replacement. You are responsible for the shipment of returned merchandise. However, we will cover the expense of Ground /Economy shipment for the replacement item(s).
Requesting an RMA
To initiate a return or warranty claim, please complete and submit the RMA Request Form.
