Alternative to ST35120A: Better-Value Equivalents in Stock
Comparing the ST35120A (ST35120A - Seagate 5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 3.5-inch Hard Drive) against alternatives? Pro Disk Network stocks 12 similar Seagate parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the ST35120A
| SKU | ST35120A |
|---|---|
| Product | ST35120A - Seagate 5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 3.5-inch Hard Drive |
| Current price | $82.42 |
| Stock status | In Stock |
| Detail page | View ST35120A › |
Alternatives to ST35120A
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.
9K2005-302 - Seagate Medalist 6531 6.5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache 3.5-inch Hard Drive
SKU: 9K2005-302
Price: $74.09
9K2005-653 - Seagate Medalist 6531 6.5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache 3.5-inch Hard Drive
SKU: 9K2005-653
Price: $87.28
9K2005-637 - Seagate Medalist 6531 6.5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache 3.5-inch Hard Drive
SKU: 9K2005-637
Price: $139.00
9K2005-601 - Seagate Medalist 6531 6.5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache 3.5-inch Hard Drive
SKU: 9K2005-601
Price: $139.00
9K2005-308 - Seagate Medalist 6531 6.5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache 3.5-inch Hard Drive
SKU: 9K2005-308
Price: $139.00
9K2005-002 - Seagate Medalist 6531 6.5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache 3.5-inch Hard Drive
SKU: 9K2005-002
Price: $139.00
9K2005-304 - Seagate Medalist 6531 6.5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache 3.5-inch Hard Drive
SKU: 9K2005-304
Price: $211.97
9K2005-652 - Seagate Medalist 6531 6.5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache 3.5-inch Hard Drive
SKU: 9K2005-652
Price: $211.97
9K2005-305 - Seagate Medalist 6531 6.5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache 3.5-inch Hard Drive
SKU: 9K2005-305
Price: $237.49
9K2005-602 - Seagate Medalist 6531 6.5GB 5400RPM IDE Ultra ATA/33 (ATA-4) 128KB Cache 3.5-inch Hard Drive
SKU: 9K2005-602
Price: $382.59
9AF351-011 - Seagate 1.5GB 3600RPM IDE Ultra ATA/33 (ATA-4) 2MB Cache Hard Drive
SKU: 9AF351-011
Price: $294.75
9AF351-999 - Seagate 1.5GB 3600RPM IDE Ultra ATA/33 (ATA-4) 2MB Cache Hard Drive
SKU: 9AF351-999
Price: $294.75
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.