Alternative to 9Y1421-302: Better-Value Equivalents in Stock
Comparing the 9Y1421-302 (9Y1421-302 - Seagate Momentus 42 20GB 4200RPM IDE/ATA-100 2MB 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 9Y1421-302
| SKU | 9Y1421-302 |
|---|---|
| Product | 9Y1421-302 - Seagate Momentus 42 20GB 4200RPM IDE/ATA-100 2MB Cache 2.5-inch Hard Drive |
| Current price | $239.99 |
| Stock status | In Stock |
| Detail page | View 9Y1421-302 › |
Alternatives to 9Y1421-302
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.
ST92014A - Seagate Momentus 42 20GB 4200RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 2.5-inch Hard Drive
SKU: ST92014A
Price: $192.57
9AH234-020 - Seagate Momentus 4200.2 100GB 4200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 2.5-inch Hard Drive
SKU: 9AH234-020
Price: $121.26
9AH237-020 - Seagate Momentus 4200.2 60GB 4200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 2.5-inch Hard Drive
SKU: 9AH237-020
Price: $143.39
9AH439-504 - Seagate Momentus 4200.2 100GB 4200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9AH439-504
Price: $189.47
9AH439-905 - Seagate Momentus 4200.2 100GB 4200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9AH439-905
Price: $189.47
9AH439-155 - Seagate Momentus 4200.2 100GB 4200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9AH439-155
Price: $189.47
9AH439-187 - Seagate Momentus 4200.2 100GB 4200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9AH439-187
Price: $189.47
9AH439-300 - Seagate Momentus 4200.2 100GB 4200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9AH439-300
Price: $189.47
9AH439-304 - Seagate Momentus 4200.2 100GB 4200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9AH439-304
Price: $189.47
9AH439-500 - Seagate Momentus 4200.2 100GB 4200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9AH439-500
Price: $189.47
9AH439-501 - Seagate Momentus 4200.2 100GB 4200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9AH439-501
Price: $189.47
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.