Alternative to ST3320820E: Better-Value Equivalents in Stock
Comparing the ST3320820E (ST3320820E - Seagate DB35 Series 320GB SATA 3Gb/s 7200RPM 8MB 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 ST3320820E
| SKU | ST3320820E |
|---|---|
| Product | ST3320820E - Seagate DB35 Series 320GB SATA 3Gb/s 7200RPM 8MB Cache 3.5-inch Hard Drive |
| Stock status | In Stock |
| Detail page | View ST3320820E › |
Alternatives to ST3320820E
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.
9BK13G-180 - Seagate DB35.3 Series 320GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BK13G-180
Price: $110.53
ST3320820SCE - Seagate DB35 Series 320GB 7200RPM SATA 3Gb/s 8MB Cache 3.5-inch Hard Drive
SKU: ST3320820SCE
Price: $110.53
9BK13G-262 - Seagate DB35.3 Series 320GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BK13G-262
Price: $134.30
9BK13G-500 - Seagate DB35.3 Series 320GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BK13G-500
Price: $134.30
9BK13G-193 - Seagate DB35.3 Series 320GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BK13G-193
Price: $134.30
Seagate 9SL14C-515 BarraCuda 7200.12 Series 320GB 7200RPM SATA 3Gb/s 16MB Cache (RoHS) 3.5-Inch Hard Drive. In Stock
SKU: 9SL14C-515
Price: $110.53
9FZ182-541 - Seagate BarraCuda 7200.11 320GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9FZ182-541
Price: $100.45
ST3320820NS - Seagate BarraCuda ES 320GB 7200RPM SATA 3Gb/s 8MB Cache 3.5-inch Hard Drive
SKU: ST3320820NS
Price: $110.53
9BJ13G-505 - Seagate BarraCuda 7200.1 320GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BJ13G-505
Price: $133.00
9BJ13G-224 - Seagate BarraCuda 7200.1 320GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BJ13G-224
Price: $137.42
9BJ13G-612 - Seagate BarraCuda 7200.1 320GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BJ13G-612
Price: $137.42
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.