Alternative to ST3400755S: Better-Value Equivalents in Stock
Comparing the ST3400755S (ST3400755S - Seagate 400GB 10000RPM SAS 3Gb/s 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 ST3400755S
| SKU | ST3400755S |
|---|---|
| Product | ST3400755S - Seagate 400GB 10000RPM SAS 3Gb/s 3.5-inch Hard Drive |
| Stock status | In Stock |
| Detail page | View ST3400755S › |
Alternatives to ST3400755S
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.
9EA066-042 - Seagate 400GB 10000RPM SAS 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9EA066-042
Price: $147.37
9EA066-041 - Seagate 400GB 10000RPM SAS 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9EA066-041
Price: $165.79
9EA066-080 - Seagate 400GB 10000RPM SAS 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9EA066-080
Price: $165.79
9EA066-001 - Seagate Cheetah NS 400GB 10000RPM SAS 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9EA066-001
Price: $194.32
ST34000755SS - Seagate Cheetah NS 400GB 10000RPM SAS 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: ST34000755SS
Price: $226.08
ST3400755SS - Seagate Cheetah NS 400GB 10000RPM SAS 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: ST3400755SS
Price: $265.26
9EA066-031 - Seagate 400GB 10000RPM SAS 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9EA066-031
Price: $296.30
9EA066-046 - Seagate Cheetah NS 400GB 10000RPM SAS 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9EA066-046
Price: $361.47
9EA066-003 - Seagate Cheetah NS 400GB 10000RPM SAS 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9EA066-003
Price: $402.83
9EA066-002 - Seagate Cheetah NS 400GB 10000RPM SAS 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9EA066-002
Price: $421.93
9EA066-035 - Seagate 400GB 10000RPM SAS 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9EA066-035
Price: $480.21
ST3146803SS - Seagate Savvio 146GB 3Gb/s 10000RPM SAS 3Gb/s 16MB Cache SFF 2.5-inch Hard Drive
SKU: ST3146803SS
Price: $175.47
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.