Replacement for C8R21A: Drop-In Alternatives We Stock
Looking for a replacement for the C8R21A (C8R21A - HP MSA 800GB SAS 6GB/s Main End SFF 2.5-inch Ent Mainstream Solid State Drive)? Pro Disk Network ships HP drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the C8R21A
| SKU | C8R21A |
|---|---|
| Product | C8R21A - HP MSA 800GB SAS 6GB/s Main End SFF 2.5-inch Ent Mainstream Solid State Drive |
| Current price | $468.42 |
| Stock status | In Stock |
| Detail page | View C8R21A › |
Drop-in replacements for C8R21A
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
717876-001 - HP MSA 200GB SAS 6GB/s Main End SFF 2.5-inch Ent Mainstream Solid State Drive
SKU: 717876-001
Price: $229.47
J9F37SB - HP Smart Buy Msa 400GB 12g/sas Main Endurance SFF 2.5-inch Enterprise Mainstream Solid State Drive
SKU: J9F37SB
Price: $762.13
871888-002 - HP MSA 800GB SAS 12Gb/s Mixed Use SFF 2.5-inch Solid State Drive
SKU: 871888-002
Price: $331.58
C8R25A - HP MSA 2040 10Gb/S Short Wave iSCSI SFP+ Transceiver Module for MSA 2040
SKU: C8R25A
Price: $370.53
779173-B21 - HP 800GB SAS 12GB/s Mainstream Endurance SFF 2.5-inch Ent Mainstream SC Solid State Drive
SKU: 779173-B21
Price: $5,100.71
787338-001 - HP 1.6TB MSA SAS 6GB/s Transfer Rate 2.5-inch Small (sff) Dual Port Enterprise Solid State Drive
SKU: 787338-001
Price: $842.11
797091-003 - HP 1.6TB MSA SAS 6GB/s Transfer Rate 2.5-inch Small (sff) Dual Port Enterprise Solid State Drive
SKU: 797091-003
Price: $1,309.74
K2R09A - HP External SAS Cable Mini-SAS/Mini-SAS HD for Server 6.56 ft 1 x SFF-8644 Mini-SAS HD 4 x SFF-8088 Mini-SAS Shielding
SKU: K2R09A
Price: $560.25
787641-001 - HP MSA 450GB 15000RPM SAS 12GB/s 2.5-inch SFF Dual Port Hard Drive with Tray
SKU: 787641-001
Price: $170.53
799327-001 - HP 200GB 2.5-inch SAS 12GB/s Mainstream Endurance SFF Enterprise Mainstream Solid State Drive with Tray for MSA Storage
SKU: 799327-001
Price: $189.47
J9F41A - HP MSA 450GB 15000RPM SAS 12GB/s 2.5-inch SFF Dual Port Hard Drive
SKU: J9F41A
Price: $200.00
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.