Replacement for 1C1275-003: Drop-In Alternatives We Stock
Looking for a replacement for the 1C1275-003 (1C1275-003 - Seagate Constellation ES.3 2TB 7200RPM SAS 6Gb/s 128MB Cache SED (CE) 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 1C1275-003
| SKU | 1C1275-003 |
|---|---|
| Product | 1C1275-003 - Seagate Constellation ES.3 2TB 7200RPM SAS 6Gb/s 128MB Cache SED (CE) 3.5-inch Hard Drive |
| Current price | $273.91 |
| Stock status | In Stock |
| Detail page | View 1C1275-003 › |
Drop-in replacements for 1C1275-003
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.
9ZM275-003 - Seagate Constellation ES.3 2TB 7200RPM SAS 6Gb/s 128MB Cache (512n) 3.5-inch Hard Drive
SKU: 9ZM275-003
Price: $157.07
9ZM175-003 - Seagate Constellation ES.3 2TB 7200RPM SATA 6Gb/s 128MB Cache (CE) 3.5-inch Hard Drive
SKU: 9ZM175-003
Price: $352.80
1C1175-003 - Seagate Constellation ES.3 2TB 7200RPM SATA 6Gb/s 128MB Cache (SED / 512n) 3.5-inch Hard Drive
SKU: 1C1175-003
Price: $529.58
9ZM278-003 - Seagate Constellation ES.3 3TB 7200RPM SAS 6Gb/s 128MB Cache 3.5-inch Hard Drive
SKU: 9ZM278-003
Price: $157.07
1C1273-003 - Seagate Constellation ES.3 1TB 7200RPM SAS 6Gb/s 128MB Cache (CE) 3.5-inch Hard Drive
SKU: 1C1273-003
Price: $192.32
9ZM270-003 - Seagate Constellation ES.3 4TB 7200RPM SAS 6Gb/s 128MB Cache (CE) 3.5-inch Hard Drive
SKU: 9ZM270-003
Price: $194.74
1C1270-003 - Seagate Constellation ES.3 4TB 7200RPM SAS 6Gb/s 128MB Cache (CE) 3.5-inch Hard Drive
SKU: 1C1270-003
Price: $392.99
9JX248-003 - Seagate Constellation ES 2TB 7200RPM SAS 6Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9JX248-003
Price: $189.47
ST2000NM0043 - Seagate Constellation ES.3 2TB 7200RPM SAS 6Gb/s 128MB Cache 3.5-inch Hard Drive
SKU: ST2000NM0043
Price: $54.74
ST2000NM0023 - Seagate Constellation ES.3 2TB 7200RPM SAS 6Gb/s 128MB Cache 3.5-inch Hard Drive
SKU: ST2000NM0023
Price: $68.42
9ZM275-157 - Seagate Constellation ES.3 2TB 7200RPM SAS 6Gb/s 128MB Cache (512n) 3.5-inch Hard Drive
SKU: 9ZM275-157
Price: $73.68
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.