Alternative to ST315322A: Better-Value Equivalents in Stock
Comparing the ST315322A (ST315322A - Seagate 15.3GB 5400RPM IDE 2MB Cache 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 ST315322A
| SKU | ST315322A |
|---|---|
| Product | ST315322A - Seagate 15.3GB 5400RPM IDE 2MB Cache 3.5-inch Hard Drive |
| Current price | $111.64 |
| Stock status | In Stock |
| Detail page | View ST315322A › |
Alternatives to ST315322A
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.
ST320015A - Seagate BarraCuda 5400.1 20GB 5400RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 3.5-inch Hard Drive
SKU: ST320015A
Price: $94.21
ST940210A - Seagate LD25.2 Series 40GB 5400RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 2.5-inch Hard Drive
SKU: ST940210A
Price: $113.68
ST340019ACE - Seagate BarraCuda 5400.1 40GB 5400RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 3.5-inch Hard Drive
SKU: ST340019ACE
Price: $119.08
9T7003-130 - Seagate U6 Series 60GB 5400RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache (CE) 3.5-inch Hard Drive
SKU: 9T7003-130
Price: $142.96
9T7004-004 - Seagate U6 Series 80GB 5400RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache (CE) 3.5-inch Hard Drive
SKU: 9T7004-004
Price: $147.37
9T7004-136 - Seagate U6 Series 80GB 5400RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache (CE) 3.5-inch Hard Drive
SKU: 9T7004-136
Price: $147.37
9T7001-804 - Seagate U6 Series 20GB 5400RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache (CE) 3.5-inch Hard Drive
SKU: 9T7001-804
Price: $149.00
9T7004-643 - Seagate U6 Series 80GB 5400RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache (CE) 3.5-inch Hard Drive
SKU: 9T7004-643
Price: $153.80
9W1021-391 - Seagate U Series X 20GB 5400RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache (CE) 3.5-inch Hard Drive
SKU: 9W1021-391
Price: $154.61
ST340810A - Seagate 40GB 5400RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 3.5-inch Hard Drive
SKU: ST340810A
Price: $155.79
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.