Replacement for STM3120814A: Drop-In Alternatives We Stock
Looking for a replacement for the STM3120814A (STM3120814A - Maxtor DiamondMax 120GB 7200RPM ATA-100 8MB Cache 3.5-inch Hard Drive)? Pro Disk Network ships 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 STM3120814A
| SKU | STM3120814A |
|---|---|
| Product | STM3120814A - Maxtor DiamondMax 120GB 7200RPM ATA-100 8MB Cache 3.5-inch Hard Drive |
| Current price | $172.42 |
| Stock status | In Stock |
| Detail page | View STM3120814A › |
Drop-in replacements for STM3120814A
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.
9DN03C-326 - Seagate Maxtor DiamondMax 120GB 7200RPM ATA-100 8MB Cache 3.5-inch Hard Drive
SKU: 9DN03C-326
Price: $164.04
STM3160815A - Maxtor DiamondMax 21 160GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 3.5-inch Hard Drive
SKU: STM3160815A
Price: $205.26
60160V0 - Maxtor DiamondMax 20 160GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 3.5-inch Hard Drive
SKU: 60160V0
Price: $249.39
STM3200827A - Maxtor DiamondMax 20 200GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 3.5-inch Hard Drive
SKU: STM3200827A
Price: $659.38
6L120P0131LP6 - Maxtor DiamondMax 10 120GB 7200RPM ATA-133 8MB Cache 3.5-inch Hard Drive
SKU: 6L120P0131LP6
Price: $204.46
6Y120P0132211 - Maxtor DiamondMax Plus 9 120GB 7200RPM ATA-133 8MB Cache 3.5-inch Hard Drive
SKU: 6Y120P0132211
Price: $273.91
6Y120P0 - Maxtor Diamondmax Plus-9 120GB 7200RPM 8MB Cache Ultra- ATA/IDE Ultra-dma 133 3.5-inch Low Profile Hard Drive
SKU: 6Y120P0
Price: $304.78
6L120P0 - Maxtor DiamondMax 10 120GB 7200RPM Ultra IDE / ATA-133 8MB Cache 3.5-inch Hard Drive
SKU: 6L120P0
Price: $369.84
6Y120P0131211 - Maxtor DiamondMax Plus 9 120GB 7200RPM ATA-133 8MB Cache 3.5-inch Hard Drive
SKU: 6Y120P0131211
Price: $395.34
STM301603N1BAA-RK - Maxtor DiamondMax 7200.1 160GB IDE Ultra ATA/133 (ATA-7) 7200RPM 8MB Cache 3.5-inch Hard Drive
SKU: STM301603N1BAA-RK
Price: $603.57
5T060H6 - Maxtor DiamondMax Plus 60 60GB 7200RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 3.5-inch Hard Drive
SKU: 5T060H6
Price: $192.83
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.