Replacement for ST34520N: Drop-In Alternatives We Stock
Looking for a replacement for the ST34520N (ST34520N - Seagate Medalist 4.55GB 7200RPM 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 ST34520N
| SKU | ST34520N |
|---|---|
| Product | ST34520N - Seagate Medalist 4.55GB 7200RPM SCSI 50-Pin 3.5-inch Hard Drive |
| Current price | $486.32 |
| Stock status | In Stock |
| Detail page | View ST34520N › |
Drop-in replacements for ST34520N
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.
9L1001-003 - Seagate Medalist Pro 4520 4.55GB 7200RPM Ultra SCSI 50-Pin 512KB Cache (CE) 3.5-inch Hard Drive
SKU: 9L1001-003
Price: $329.03
9L1001-031 - Seagate Medalist Pro 4520 4.55GB 7200RPM Ultra SCSI 50-Pin 512KB Cache 3.5-inch Hard Drive
SKU: 9L1001-031
Price: $444.09
9L1001-005 - Seagate Medalist Pro 4520 4.55GB 7200RPM Ultra SCSI 50-Pin 512KB Cache (CE) 3.5-inch Hard Drive
SKU: 9L1001-005
Price: $446.42
9L1001-302 - Seagate Medalist Pro 4520 4.55GB 7200RPM Ultra SCSI 50-Pin 512KB Cache (CE) 3.5-inch Hard Drive
SKU: 9L1001-302
Price: $477.80
9L1001-301 - Seagate Medalist Pro 4520 4.55GB 7200RPM Ultra SCSI 50-Pin 512KB Cache (CE) 3.5-inch Hard Drive
SKU: 9L1001-301
Price: $492.41
9L1001-303 - Seagate Medalist Pro 4520 4.55GB 7200RPM Ultra SCSI 50-Pin 512KB Cache (CE) 3.5-inch Hard Drive
SKU: 9L1001-303
Price: $492.41
9L1001-304 - Seagate Medalist Pro 4520 4.55GB 7200RPM Ultra SCSI 50-Pin 512KB Cache (CE) 3.5-inch Hard Drive
SKU: 9L1001-304
Price: $492.41
ST51080N - Seagate Medalist 1080SL 1.08GB 5400RPM Fast SCSI 50-Pin 128KB Cache 3.5-inch Hard Drive
SKU: ST51080N
Price: $296.84
ST52160N - Seagate Medalist Pro 2160 2.16GB 5400RPM Wide Ultra SCSI 50-Pin 128KB Cache 3.5-inch Hard Drive
SKU: ST52160N
Price: $355.79
9C2004-301 - Seagate Medalist 1080SL 1.08GB 5400RPM Fast SCSI 50-Pin 128KB Cache 3.5-inch Hard Drive
SKU: 9C2004-301
Price: $356.54
9C2004-041 - Seagate Medalist 1080SL 1.08GB 5400RPM Fast SCSI 50-Pin 128KB Cache 3.5-inch Hard Drive
SKU: 9C2004-041
Price: $361.47
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.