Replacement for ST5660N: Drop-In Alternatives We Stock
Looking for a replacement for the ST5660N (ST5660N - Seagate 545MB 4500RPM Fast SCSI 50-Pin 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 ST5660N
| SKU | ST5660N |
|---|---|
| Product | ST5660N - Seagate 545MB 4500RPM Fast SCSI 50-Pin 3.5-inch Hard Drive |
| Current price | $357.89 |
| Stock status | In Stock |
| Detail page | View ST5660N › |
Drop-in replacements for ST5660N
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.
9A2005-031 - Seagate 545MB 4500RPM Fast SCSI 80-Pin 3.5-inch Hard Drive
SKU: 9A2005-031
Price: $392.99
ST3600N - Seagate 525MB 4500RPM Fast SCSI 240KB Cache 50-Pin 3.5-inch Hard Drive
SKU: ST3600N
Price: $194.74
948003-027 - Seagate 525MB 4500RPM Fast SCSI 240KB Cache 50-Pin 3.5-inch Hard Drive
SKU: 948003-027
Price: $438.16
ST3285N - Seagate 249MB 4500RPM Fast SCSI 50-Pin 128KB Cache 3.5-inch Hard Drive
SKU: ST3285N
Price: $608.79
ST3550N - Seagate 457MB 4500RPM Fast SCSI 50-Pin 256KB Cache 3.5-inch Hard Drive
SKU: ST3550N
Price: $661.11
9J7012-504 - Seagate Medalist 3232 3.2GB 4500RPM IDE Ultra ATA/33 (ATA-4) (CE) 3.5-inch Hard Drive
SKU: 9J7012-504
Price: $84.62
9J7013-503 - Seagate Medalist 2122 2.1GB 4500RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache (CE) 3.5-inch Hard Drive
SKU: 9J7013-503
Price: $87.28
9J7013-101 - Seagate Medalist 2122 2.1GB 4500RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache (CE) 3.5-inch Hard Drive
SKU: 9J7013-101
Price: $87.28
9J7013-502 - Seagate Medalist 2122 2.1GB 4500RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache (CE) 3.5-inch Hard Drive
SKU: 9J7013-502
Price: $87.28
ST92155AG - Seagate Marathon 2.1GB 4500RPM IDE/ATA 107KB Cache 2.5-inch Hard Drive
SKU: ST92155AG
Price: $95.08
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.