Replacement for ST9120411AS: Drop-In Alternatives We Stock
Looking for a replacement for the ST9120411AS (ST9120411AS - Seagate 120GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-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 ST9120411AS
| SKU | ST9120411AS |
|---|---|
| Product | ST9120411AS - Seagate 120GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive |
| Current price | $305.05 |
| Stock status | In Stock |
| Detail page | View ST9120411AS › |
Drop-in replacements for ST9120411AS
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
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
ST9120411ASG - Seagate Momentus 120GB 7200RPM SATA 16MB Cache 2.5-inch Hard Drive
SKU: ST9120411ASG
Price: $305.05
ST9120410AS - Seagate Momentus 120GB 7200RPM 2.5-inch 16MB Cache SATA Hard Drive
SKU: ST9120410AS
Price: $357.09
ST3120211AS - Seagate BarraCuda 7200.9 120GB 7200RPM SATA 3Gb/s 2MB Cache 3.5-inch Hard Drive
SKU: ST3120211AS
Price: $77.12
9BD13C-525 - Seagate BarraCuda 7200.9 120GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD13C-525
Price: $129.58
9BD13C-526 - Seagate BarraCuda 7200.9 120GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD13C-526
Price: $129.58
9BD13C-512 - Seagate BarraCuda 7200.9 120GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD13C-512
Price: $129.58
9BD13C-620 - Seagate BarraCuda 7200.9 120GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD13C-620
Price: $129.58
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.