Replacement for ST34520A: Drop-In Alternatives We Stock
Looking for a replacement for the ST34520A (ST34520A - Seagate 4GB 7200RPM ATA-33 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 ST34520A
| SKU | ST34520A |
|---|---|
| Product | ST34520A - Seagate 4GB 7200RPM ATA-33 3.5-inch Hard Drive |
| Current price | $480.21 |
| Stock status | In Stock |
| Detail page | View ST34520A › |
Drop-in replacements for ST34520A
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.
9T6006-733 - Seagate BarraCuda ATA IV 80GB 7200RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache (CE) 3.5-inch Hard Drive
SKU: 9T6006-733
Price: $159.53
9T6001-337 - Seagate BarraCuda 60GB 7200RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 3.5-inch Hard Drive
SKU: 9T6001-337
Price: $122.51
9BJ03E-033 - Seagate BarraCuda 7200.1 250GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BJ03E-033
Price: $129.58
9W2083-033 - Seagate BarraCuda 7200.7 120GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9W2083-033
Price: $144.07
9W2083-336 - Seagate BarraCuda 7200.7 120GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9W2083-336
Price: $144.07
9W2082-336 - Seagate BarraCuda 7200.7 80GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9W2082-336
Price: $144.07
9W2082-033 - Seagate BarraCuda 7200.7 80GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9W2082-033
Price: $144.07
9S3733-302 - Seagate 80GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 2.5-inch Hard Drive
SKU: 9S3733-302
Price: $151.55
9S3733-503 - Seagate Momentus 7200.1 80GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 2.5-inch Hard Drive
SKU: 9S3733-503
Price: $151.55
9S3733-502 - Seagate 80GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 2.5-inch Hard Drive
SKU: 9S3733-502
Price: $151.55
9S3733-999 - Seagate 80GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 2.5-inch Hard Drive
SKU: 9S3733-999
Price: $151.55
9S3733-020 - Seagate 80GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 2.5-inch Hard Drive
SKU: 9S3733-020
Price: $151.55
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.