Alternative to ST3100520AS: Better-Value Equivalents in Stock
Comparing the ST3100520AS (ST3100520AS - Seagate BarraCuda Green 1TB 5900RPM SATA 3Gb/s 32MB 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 ST3100520AS
| SKU | ST3100520AS |
|---|---|
| Product | ST3100520AS - Seagate BarraCuda Green 1TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive |
| Current price | $320.14 |
| Stock status | In Stock |
| Detail page | View ST3100520AS › |
Alternatives to ST3100520AS
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.
9TT153-301 - Seagate BarraCuda Green 1TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: 9TT153-301
Price: $489.37
ST1000DL002 - Seagate BarraCuda Green 1TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: ST1000DL002
Price: $503.09
9TN15R-568 - Seagate BarraCuda Green 1.5TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: 9TN15R-568
Price: $232.82
9JB1AU-572 - Seagate BarraCuda Green 1.5TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: 9JB1AU-572
Price: $373.21
9JB1AU-571 - Seagate BarraCuda Green 1.5TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: 9JB1AU-571
Price: $373.21
9TN15R-510 - Seagate BarraCuda Green 1.5TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: 9TN15R-510
Price: $476.45
9TN15R-301 - Seagate BarraCuda Green 1.5TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: 9TN15R-301
Price: $565.32
9TN154-541 - Seagate BarraCuda LP 1TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: 9TN154-541
Price: $192.08
9TN154-510 - Seagate BarraCuda LP 1TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: 9TN154-510
Price: $315.66
ST31000520AS - Seagate BarraCuda LP 1TB 5900RPM SATA 3Gb/s Cche 32MB Cache 3.5-inch Hard Drive
SKU: ST31000520AS
Price: $339.54
9TN154-410 - Seagate BarraCuda LP 1TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: 9TN154-410
Price: $361.47
9TN154-301 - Seagate BarraCuda LP 1TB 5900RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: 9TN154-301
Price: $438.16
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.