Alternative to ST3400620A: Better-Value Equivalents in Stock
Comparing the ST3400620A (ST3400620A - Seagate BarraCuda 400GB 7200RPM ATA-100 16MB 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 ST3400620A
| SKU | ST3400620A |
|---|---|
| Product | ST3400620A - Seagate BarraCuda 400GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive |
| Current price | $641.42 |
| Stock status | In Stock |
| Detail page | View ST3400620A › |
Alternatives to ST3400620A
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.
ST3400632A-RK - Seagate BarraCuda 400GB 7200RPM IDE Ultra ATA/100 (ATA-6) 16MB Cache 3.5-inch Hard Drive
SKU: ST3400632A-RK
Price: $560.25
ST3400633A - Seagate BarraCuda 7200.9 400GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: ST3400633A
Price: $250.53
9BD045-304 - Seagate BarraCuda 7200.9 400GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: 9BD045-304
Price: $391.87
9BD045-340 - Seagate BarraCuda 7200.9 400GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: 9BD045-340
Price: $463.87
9Y7769-557 - Seagate BarraCuda 7200.8 400GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: 9Y7769-557
Price: $503.09
9Y7485-516 - Seagate BarraCuda 7200.8 400GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 3.5-inch Hard Drive
SKU: 9Y7485-516
Price: $385.47
9Y7485-904 - Seagate BarraCuda 7200.8 400GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 3.5-inch Hard Drive
SKU: 9Y7485-904
Price: $385.47
9Y7485-760 - Seagate BarraCuda 7200.8 400GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 3.5-inch Hard Drive
SKU: 9Y7485-760
Price: $385.47
9Y7485-765 - Seagate BarraCuda 7200.8 400GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 3.5-inch Hard Drive
SKU: 9Y7485-765
Price: $385.47
9Y7485-780 - Seagate BarraCuda 7200.8 400GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 3.5-inch Hard Drive
SKU: 9Y7485-780
Price: $385.47
9Y7485-840 - Seagate BarraCuda 7200.8 400GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 3.5-inch Hard Drive
SKU: 9Y7485-840
Price: $385.47
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.