Replacement for DK225A-21: Drop-In Alternatives We Stock
Looking for a replacement for the DK225A-21 (DK225A-21 - Hitachi 2.16GB 4500RPM ATA-33 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 DK225A-21
| SKU | DK225A-21 |
|---|---|
| Product | DK225A-21 - Hitachi 2.16GB 4500RPM ATA-33 2.5-inch Hard Drive |
| Current price | $324.21 |
| Stock status | In Stock |
| Detail page | View DK225A-21 › |
Drop-in replacements for DK225A-21
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.
07N9214 - Hitachi Deskstar 180GXP 120GB 7200RPM IDE Ultra ATA/133 (ATA-7) 2MB Cache 3.5-inch Hard Drive
SKU: 07N9214
Price: $235.79
HDS721010KLAT60 - Hitachi Deskstar 7K1000 1TB 7200RPM IDE Ultra ATA/133 (ATA-7) 8MB Cache 3.5-inch Hard Drive
SKU: HDS721010KLAT60
Price: $414.32
0A31421 - Hitachi Deskstar 7K80 40GB 7200RPM ATA-133 2MB Cache 3.5-inch Hard Drive
SKU: 0A31421
Price: $78.50
0A33218 - Hitachi Deskstar 7K80 80GB 7200RPM ATA-100 2MB Cache 3.5-inch Hard Drive
SKU: 0A33218
Price: $82.42
0A21133 - Hitachi Travelstar 80GN 60GB 4200RPM ATA-100 8MB Cache 2.5-inch Hard Drive
SKU: 0A21133
Price: $82.42
0A32157 - Hitachi Deskstar T7K500 320GB 7200RPM ATA-133 8MB Cache 3.5-inch Hard Drive
SKU: 0A32157
Price: $91.46
0A30214 - Hitachi Deskstar 7K80 40GB 7200RPM ATA-133 2MB Cache 3.5-inch Hard Drive
SKU: 0A30214
Price: $110.82
0A21611 - Hitachi Deskstar T7K250 250GB 7200RPM ATA-133 8MB Cache 3.5-inch Hard Drive
SKU: 0A21611
Price: $126.37
0A32159 - Hitachi Deskstar T7K500 250GB 7200RPM ATA-133 8MB Cache 3.5-inch Hard Drive
SKU: 0A32159
Price: $128.05
HTS541210H9AT00 - Hitachi Travelstar 5K120 100GB 5400RPM ATA-133 8MB Cache 2.5-inch Hard Drive
SKU: HTS541210H9AT00
Price: $140.76
HDS721680PLAT80 - Hitachi Deskstar 80GB 7200RPM ATA-133 8MB Cache 3.5-inch Hard Drive
SKU: HDS721680PLAT80
Price: $153.12
HDS721680PLAT20 - Hitachi Deskstar 7K160 80GB 7200RPM ATA-133 8MB Cache 3.5-inch Hard Drive
SKU: HDS721680PLAT20
Price: $161.93
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.