This item, P40560-B21, is the HPE option part number for the product described as 800GB SAS 12G Mixed Use SFF BC PM1645a SSD. Further details below.
The HPE 800GB SAS 12G Mixed Use SFF BC PM1645a SSD (P40560-B21) is a genuine HPE 800GB solid state drive for mixed read and write workloads. It uses a SAS interface at 12 Gb/s. It ships on an HPE Basic Carrier (BC) for SFF (2.5-inch) bays, which HPE's carrier key decoder lists as a non-smart, hot-plug carrier.
HPE's server QuickSpecs list it for the three ProLiant models in the Compatible With section below, across Gen11 and Gen12. Every part ships tested or factory sealed and is backed by a 3-year replacement warranty.
HPE Option Part #: P40560-B21
HPE Spare Part #: P41558-001
PRODUCT SPECIFICATIONS FOR P40560-B21:
- Product Number: P40560-B21
- Capacity: 800GB
- Drive type: Solid state drive
- Interface: SAS 12G
- Drive form factor: SFF (2.5-inch)
- Carrier type: Basic Carrier (BC)
- Workload: Mixed Use
- Drive model (in HPE's name): PM1645a
- Plug type: Hot pluggable
- Weight: 1.00 lb
- Warranty: 3 years
COMPATIBLE WITH:
PROLIANT DL SERIES
** This list may not be complete. Check HPE's QuickSpecs for your server to verify compatibility.
FREQUENTLY ASKED QUESTIONS FOR P40560-B21:
- Which HPE ProLiant servers list P40560-B21?
HPE's server QuickSpecs list this drive for three ProLiant models, across Gen11 and Gen12: the DL360 Gen11, DL360 Gen12 and DL385 Gen11. The full list is in the Compatible With section of this page. - What carrier does P40560-B21 use and is it hot pluggable?
This drive ships on an HPE Basic Carrier (BC) for SFF (2.5-inch) bays. HPE's carrier key decoder lists the BC as a non-smart, hot-plug carrier (HPE Solid State Disk Drives QuickSpecs a00001288enw, version 77, page 88). - Does HPE publish performance figures for P40560-B21?
Not in its drive QuickSpecs: HPE's Solid State Disk Drives QuickSpecs (a00001288enw, version 77) do not list this drive, so endurance and performance figures are not stated here. HPE's name classes it as Mixed Use.
Last Updated: 2026-10-20
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- Form Factor/Carrier Type
- SFF / Basic Carrier (BC)
This product is warrantied against hardware failure for a period of 3 Years 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.


