Replacement for 1DG142-520: Drop-In Alternatives We Stock
Looking for a replacement for the 1DG142-520 (1DG142-520 - Seagate 500GB 5400RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive)? Pro Disk Network ships Seagate drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the 1DG142-520
| SKU | 1DG142-520 |
|---|---|
| Product | 1DG142-520 - Seagate 500GB 5400RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive |
| Current price | $608.79 |
| Stock status | In Stock |
| Detail page | View 1DG142-520 › |
Drop-in replacements for 1DG142-520
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.
9RT143-520 - Seagate Momentus 7200.4 500GB 7200RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 9RT143-520
Price: $565.32
1DG14C-520 - Seagate Momentus Thin 320GB 5400RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 1DG14C-520
Price: $278.74
9YP142-520 - Seagate BarraCuda 7200.12 500GB 7200RPM SATA 6Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9YP142-520
Price: $262.32
9BD143-520 - Seagate BarraCuda 7200.9 250GB 7200RPM SATA 3Gb/s 16MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD143-520
Price: $345.12
9BD138-520 - Seagate BarraCuda 7200.9 500GB 7200RPM SATA 3Gb/s 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9BD138-520
Price: $363.49
9F6066-520 - Seagate 146GB 10000RPM SAS 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 9F6066-520
Price: $189.47
9F4066-520 - Seagate Savvio 10K.2 73GB 10000RPM SAS 3Gb/s 16MB Cache (CE) 2.5-inch Hard Drive
SKU: 9F4066-520
Price: $192.08
9Z3066-520 - Seagate Cheetah 15K.5 73.4GB 15000RPM SAS 3Gb/s 16MB Cache (CE) 3.5-inch Enterprise Hard Drive
SKU: 9Z3066-520
Price: $192.08
ST500LT012 - Seagate Momentus Thin 500GB 5400RPM 2.5-inch 7MM 16MB Cache SATA 3Gb/s NCQ Laptop Hard Drive
SKU: ST500LT012
Price: $68.42
1DG142-540 - Seagate Momentus Thin 500GB 5400RPM SATA 3Gb/s 16MB Cache (CE) 2.5-inch Hard Drive
SKU: 1DG142-540
Price: $131.58
691918-003 - HP / Seagate Momentus Thin 500GB 5400RPM SATA 3Gb/s 16MB Cache 2.5-inch Hard Drive
SKU: 691918-003
Price: $165.79
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.