Replacement for 636597-S21: Drop-In Alternatives We Stock
Looking for a replacement for the 636597-S21 (636597-S21 - HP Enterprise 400GB SATA 3Gb/s Hot-Pluggable 2.5-inch MLC 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 636597-S21
| SKU | 636597-S21 |
|---|---|
| Product | 636597-S21 - HP Enterprise 400GB SATA 3Gb/s Hot-Pluggable 2.5-inch MLC Solid State Drive |
| Current price | $442.11 |
| Stock status | In Stock |
| Detail page | View 636597-S21 › |
Drop-in replacements for 636597-S21
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.
636597-B21 - HP Enterprise 400GB Multi-Level Cell SATA 3Gb/s Hot-Pluggable 2.5-inch Solid State Drive
SKU: 636597-B21
Price: $233.68
653126-B21 - HP 400GB 3g SATA Mlc SFF 3.5-inch Sc Hot-pluggable Enterprise Mainstream Solid State Drive for Gen8 Server
SKU: 653126-B21
Price: $654.74
653105-B21 - HP 400GB SAS 6GB/s Mlc SFF 2.5-inch Sc Enterprise Hot-pluggable Mainstream Solid State Drive for Gen8 Servers Only
SKU: 653105-B21
Price: $389.47
653963-001 - HP 400GB SAS 6GB/s Mlc SFF 2.5-inch Sc Enterprise Hot-pluggable Mainstream Solid State Drive for Gen8 Servers Only
SKU: 653963-001
Price: $426.32
636611-B21 - HP 400GB Multi-Level Cell SATA 3GB/s Hot-Pluggable 3.5-inch Enterprise Solid State Drive
SKU: 636611-B21
Price: $461.84
653118-S21 - HP Enterprise 200GB SATA 3Gb/s Hot-Pluggable 2.5-inch MLC Solid State Drive
SKU: 653118-S21
Price: $503.09
653112-S21 - HP Enterprise 100GB SATA 3Gb/s Hot-Pluggable 2.5-inch MLC Solid State Drive
SKU: 653112-S21
Price: $548.82
636609-S21 - HP 200GB SATA 3GB/s Hot-Pluggable 3.5-inch MLC Enterprise Solid State Drive
SKU: 636609-S21
Price: $576.18
HPE EO000400JWTBV 400GB SAS 12Gb/s Hot Pluggable Write Intensive SFF 2.5-Inch Solid State Drive with Hot Pluggable Smart Carrier for ProLiant BL460c Gen10
SKU: EO000400JWTBV
Price: $278.95
HPE P06600-001 400GB SAS 12Gb/s Hot Pluggable Write Intensive SFF 2.5-Inch Solid State Drive with Hot Pluggable Smart Carrier for ProLiant BL460c Gen10
SKU: P06600-001
Price: $286.32
636605-B21 - HP 400GB SATA 3GB/s 2.5-inch MLC Enterprise Solid State Drive
SKU: 636605-B21
Price: $392.99
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.