Replacement for H7B55B: Drop-In Alternatives We Stock
Looking for a replacement for the H7B55B (H7B55B - HP 400GB SATA 1.8-inch Solid State Drive for MC990)? 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 H7B55B
| SKU | H7B55B |
|---|---|
| Product | H7B55B - HP 400GB SATA 1.8-inch Solid State Drive for MC990 |
| Stock status | In Stock |
| Detail page | View H7B55B › |
Drop-in replacements for H7B55B
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.
804665-B21 - HP 400GB SATA 6Gb/s Write Intensive-2 2.5-inch Solid State Drive
SKU: 804665-B21
Price: $163.16
805387-001 - HP 400GB SATA 6Gb/s Write Intensive-2 2.5-inch Solid State Drive
SKU: 805387-001
Price: $163.16
MZ5EA40000HMFP - HP 400GB MLC SATA 3Gb/s 2.5-inch Solid State Drive
SKU: MZ5EA40000HMFP
Price: $189.47
692166-001 - HP Enterprise 400GB Multi-Level Cell SATA 6Gb/s 2.5-inch Solid State Drive
SKU: 692166-001
Price: $202.11
691866-S21 - HP 400GB Multi-Level Cell SATA 6GB/s 2.5-inch Enterprise Solid State Drive
SKU: 691866-S21
Price: $202.11
636458-003 - HP 400GB SATA 3Gb/s 2.5-inch 2.5-inch MLC Solid State Drive
SKU: 636458-003
Price: $212.63
653126-S21 - HP 400GB Multi-Level Cell (MLC) SATA 3Gb/s 3.5-inch Solid State Drive
SKU: 653126-S21
Price: $212.63
MK0400GCTZA - HP 400GB Multi-Level Cell SATA 6GB/s 2.5-inch Solid State Drive
SKU: MK0400GCTZA
Price: $233.68
691842-003 - HP 400GB Multi-Level Cell SATA 6GB/s 2.5-inch Solid State Drive
SKU: 691842-003
Price: $233.68
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.