Replacement for 0B31303: Drop-In Alternatives We Stock
Looking for a replacement for the 0B31303 (0B31303 - Hitachi 300GB 10000RPM SAS 12Gb/s 2.5-inch Hard Drive)? Pro Disk Network ships Hitachi 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 0B31303
| SKU | 0B31303 |
|---|---|
| Product | 0B31303 - Hitachi 300GB 10000RPM SAS 12Gb/s 2.5-inch Hard Drive |
| Current price | $385.47 |
| Stock status | In Stock |
| Detail page | View 0B31303 › |
Drop-in replacements for 0B31303
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.
0B31242 - Hitachi Ultrastar C10K1800 300GB 10000RPM SAS 12Gb/s 128MB Cache 2.5-inch Enterprise Hard Drive
SKU: 0B31242
Price: $147.37
HUC101830CSS204 - Hitachi Ultrastar C10K1800 300GB 10000RPM SAS 12Gb/s 128MB Cache (SE) 2.5-inch Hard Drive
SKU: HUC101830CSS204
Price: $189.47
0B30868 - Hitachi Ultrastar C10K1800 300GB 10000RPM SAS 12Gb/s 128MB Cache (TCG) 2.5-inch Hard Drive
SKU: 0B30868
Price: $211.00
HUC101830CSS201 - Hitachi Ultrastar C10K1800 300GB 10000RPM SAS 12Gb/s 128MB Cache (TCG) 2.5-inch Hard Drive
SKU: HUC101830CSS201
Price: $211.00
0B33076 - Hitachi Ultrastar C10K1800 300GB 10000RPM SAS 12Gb/s 128MB Cache 2.5-Inch Enterprise Hard Drive
SKU: 0B33076
Price: $226.08
HUC101830CSS200 - Hitachi Ultrastar C10K1800 300GB 10000RPM SAS 12Gb/s 128MB Cache (ISE) 2.5-inch Hard Drive
SKU: HUC101830CSS200
Price: $268.42
0B28810 - Hitachi Ultrastar C10K1800 300GB 10000RPM SAS 12Gb/s 128MB Cache (ISE) 2.5-inch Hard Drive
SKU: 0B28810
Price: $1,272.54
0B31228 - Hitachi Ultrastar C10K1800 300GB 10000RPM SAS 12GB/s 128MB Cache (SE) 2.5-inch Hard Drive
SKU: 0B31228
Price: $1,316.49
HUC101830CSS205 - Hitachi Ultrastar C10K1800 300GB 10000RPM SAS 12GB/s 128MB Cache (TCG) 2.5-inch Hard Drive
SKU: HUC101830CSS205
Price: $1,555.28
0B31343 - Hitachi Ultrastar C15K600 300GB 15000RPM SAS 12Gb/s 128MB Cache 2.5-inch Enterprise Hard Drive
SKU: 0B31343
Price: $110.53
HUC156030CSS200 - Hitachi Ultrastar C15K600 300GB 15000RPM SAS 12Gb/s 128MB Cache 512n 2.5-inch Enterprise Hard Drive
SKU: HUC156030CSS200
Price: $189.47
HUC156030CSS204 - Hitachi Ultrastar C15K600 300GB 15000RPM SAS 12Gb/s 128MB Cache 512n 2.5-inch Hard Drive
SKU: HUC156030CSS204
Price: $211.00
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.