Alternative to 9RT143-520: Better-Value Equivalents in Stock
Comparing the 9RT143-520 (9RT143-520 - Seagate Momentus 7200.4 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-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 9RT143-520
| SKU | 9RT143-520 |
|---|---|
| Product | 9RT143-520 - Seagate Momentus 7200.4 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive |
| Current price | $565.32 |
| Stock status | In Stock |
| Detail page | View 9RT143-520 › |
Alternatives to 9RT143-520
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.
1DG14C-520 - Seagate Momentus Thin 320GB 5400RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 1DG14C-520
Price: $278.74
9HV144-566 - Seagate Momentus 7200.4 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 9HV144-566
Price: $110.53
9HV144-300 - Seagate Momentus 7200.4 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 9HV144-300
Price: $110.53
Seagate 9HV144-022 Momentus 7200.4 Series 500GB 7200RPM SATA 3Gb/s 16MB Cache (CE) 2.5-Inch Hard Drive. In Stock
SKU: 9HV144-022
Price: $160.00
ST9500423AS - Seagate Momentus 7200.4 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: ST9500423AS
Price: $182.37
9HV144-037 - Seagate Momentus 7200.4 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 9HV144-037
Price: $189.47
ST9500420AS - Seagate Momentus 500GB 7200RPM SATA 3Gb/s 7-Pin 16MB Cache 2.5-inch Hard Drive
SKU: ST9500420AS
Price: $210.53
9PU144-500 - Seagate Momentus 7200 500GB 7200RPM SATA 3Gb/s 2.5-inch 16MB Cache Hard Drive
SKU: 9PU144-500
Price: $259.50
ST9500422AS - Seagate Momentus 7200 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: ST9500422AS
Price: $259.50
9PSG44-040 - Seagate Momentus 7200.4 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 9PSG44-040
Price: $262.32
ST9500420ASG - Seagate Momentus 5400.2 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: ST9500420ASG
Price: $291.79
9RT143-031 - Seagate Momentus 7200.4 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 9RT143-031
Price: $318.32
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.