Replacement for ST9120410AS: Drop-In Alternatives We Stock
Looking for a replacement for the ST9120410AS (ST9120410AS - Seagate Momentus 120GB 7200RPM 2.5-inch 16MB Cache SATA 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 ST9120410AS
| SKU | ST9120410AS |
|---|---|
| Product | ST9120410AS - Seagate Momentus 120GB 7200RPM 2.5-inch 16MB Cache SATA Hard Drive |
| Current price | $357.09 |
| Stock status | In Stock |
| Detail page | View ST9120410AS › |
Drop-in replacements for ST9120410AS
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.
9GEG4C-740 - Seagate Momentus 7200.3 120GB 7200RPM SATA 3Gb/s 16MB Cache (CE) 2.5-inch Hard Drive
SKU: 9GEG4C-740
Price: $226.08
ST9120411ASG - Seagate Momentus 120GB 7200RPM SATA 16MB Cache 2.5-inch Hard Drive
SKU: ST9120411ASG
Price: $305.05
9GEG4C-033 - Seagate Momentus 7200.3 120GB 7200RPM SATA 3Gb/s 16MB Cache (CE) 2.5-inch Hard Drive
SKU: 9GEG4C-033
Price: $417.54
9GEG4C-035 - Seagate Momentus 7200.3 120GB 7200RPM SATA 3Gb/s 16MB Cache (CE) 2.5-inch Hard Drive
SKU: 9GEG4C-035
Price: $473.68
9GEG4C-300 - Seagate Momentus 7200.3 120GB 7200RPM SATA 3Gb/s 16MB Cache (CE) 2.5-inch Hard Drive
SKU: 9GEG4C-300
Price: $473.68
ST9120823AS - Seagate Momentus 120GB 7200RPM SATA 3Gb/s 8MB Cache 2.5-inch Hard Drive
SKU: ST9120823AS
Price: $226.08
ST9320421ASG - Seagate Momentus 320GB 7200RPM SATA 2.5-inchinchES 16MB Cache Laptop Hard Drive
SKU: ST9320421ASG
Price: $68.42
ST916411ASG - Seagate Momentus 7200.3 160GB 7200RPM SATA 6Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: ST916411ASG
Price: $82.24
ST320LT023 - Seagate Momentus 320GB 2.5-inch Hard Drive SATA 3Gb/s 7200RPM 16MB Cache
SKU: ST320LT023
Price: $84.21
9HV14C-222 - Seagate Momentus 7200.4 160GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 9HV14C-222
Price: $93.84
9HV14C-500 - Seagate Momentus 7200.4 160GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 9HV14C-500
Price: $102.30
9HV144-566 - Seagate Momentus 7200.4 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 9HV144-566
Price: $110.53
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.