Replacement for 1ER166-500: Drop-In Alternatives We Stock
Looking for a replacement for the 1ER166-500 (1ER166-500 - Seagate 3TB 7200RPM SATA 6Gb/s 64MB Cache (RoHS) 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 1ER166-500
| SKU | 1ER166-500 |
|---|---|
| Product | 1ER166-500 - Seagate 3TB 7200RPM SATA 6Gb/s 64MB Cache (RoHS) 3.5-inch Hard Drive |
| Current price | $625.50 |
| Stock status | In Stock |
| Detail page | View 1ER166-500 › |
Drop-in replacements for 1ER166-500
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.
1ES166-500 - Seagate SV35 Series 3TB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive
SKU: 1ES166-500
Price: $343.63
1DY166-500 - Seagate Constellaton CS 3TB 7200RPM SATA 6Gb/s 64MB Cache (CE) 3.5-inch Hard Drive
SKU: 1DY166-500
Price: $361.47
9YN166-500 - Seagate BarraCuda 3TB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive
SKU: 9YN166-500
Price: $415.09
1CH166-500 - Seagate BarraCuda 3TB 7200RPM SATA 6Gb/s 64MB Cache (RoHS) 3.5-inch Hard Drive
SKU: 1CH166-500
Price: $625.50
1BJ166-500 - Seagate 3TB 7200RPM SATA 6Gb/s 64MB Cache (CE) 3.5-inch Hard Drive
SKU: 1BJ166-500
Price: $725.33
1ET166-500 - Seagate 3TB 5900RPM SATA 6Gb/s 64MB Cache (CE) 3.5-inch Hard Drive
SKU: 1ET166-500
Price: $458.74
1F316N-500 - Seagate 3TB 5900RPM SATA 6Gb/s 64MB Cache (CE) 3.5-inch Hard Drive
SKU: 1F316N-500
Price: $585.43
1SF176-500 - Seagate NAS HDD 3TB 7200RPM 3.5-inch 128MB Cache SATA 6Gb/s Enterprise Hard Drive
SKU: 1SF176-500
Price: $354.08
1V410N-500 - Seagate Exos 7E8 3TB 7200RPM SATA 6Gb/s 128MB Cache (512n) 3.5-inch Hard Drive
SKU: 1V410N-500
Price: $437.88
1ES164-500 - Seagate SV35 Series 2TB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive
SKU: 1ES164-500
Price: $262.86
1CM162-500 - Seagate 1TB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hybrid Hard Drive
SKU: 1CM162-500
Price: $372.74
1ER162-500 - Seagate 1TB 7200RPM SATA 6Gb/s 64MB Cache (RoHS) 512e 3.5-inch Hard Drive
SKU: 1ER162-500
Price: $402.12
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.