Replacement for ST3120022A: Drop-In Alternatives We Stock
Looking for a replacement for the ST3120022A (ST3120022A - Seagate BarraCuda 120GB 7200RPM EIDE 2MB Cache 3.5-inch Hard Drive)? Pro Disk Network ships Seagate 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 ST3120022A
| SKU | ST3120022A |
|---|---|
| Product | ST3120022A - Seagate BarraCuda 120GB 7200RPM EIDE 2MB Cache 3.5-inch Hard Drive |
| Current price | $392.99 |
| Stock status | In Stock |
| Detail page | View ST3120022A › |
Drop-in replacements for ST3120022A
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.
ST320011A - Seagate BarraCuda 20GB 7200RPM EIDE 2MB Cache 3.5-inch Hard Drive
SKU: ST320011A
Price: $155.79
ST3120025A - Seagate 120GB 7200RPM EIDE/ATA-100 3.5-inch LOW PROFLE 2MB Cache Hard Drive
SKU: ST3120025A
Price: $205.26
ST3200822A - Seagate BarraCuda 200GB 7200RPM EIDE 8MB Cache DMA/ATA-100 ULTRA 3.5-inch Hard Drive
SKU: ST3200822A
Price: $597.93
ST3300631A - Seagate BarraCuda 300GB 7200RPM EIDE 16MB Cache DMA/ATA-100 Hard Drive
SKU: ST3300631A
Price: $692.17
ST9120822A - Seagate Momentus 120GB 5400RPM EIDE Laptop 8MB Cache DMA/ATA-100 UL Hard Drive
SKU: ST9120822A
Price: $250.53
ST96023A - Seagate Momentus 60GB 7200RPM EIDE Laptop 8MB Cache DMA/ATA-100 Hard Drive
SKU: ST96023A
Price: $165.79
ST3160815AV - Seagate SV35.2 160GB 7200RPM EIDE DMA/ATA-100 ULTRA 8MB Cache 3.5-inch Hard Drive
SKU: ST3160815AV
Price: $299.75
9W2002-031 - Seagate BarraCuda 7200.7 120GB 7200RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 3.5-inch Hard Drive
SKU: 9W2002-031
Price: $75.14
ST3120211AS - Seagate BarraCuda 7200.9 120GB 7200RPM SATA 3Gb/s 2MB Cache 3.5-inch Hard Drive
SKU: ST3120211AS
Price: $77.12
9BD11C-621 - Seagate BarraCuda 7200.9 120GB 7200RPM SATA 3Gb/s 2MB Cache 3.5-inch Hard Drive
SKU: 9BD11C-621
Price: $198.95
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.