Replacement for STDR402: Drop-In Alternatives We Stock
Looking for a replacement for the STDR402 (STDR402 - Seagate Backup Plus Slim Case)? 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 STDR402
| SKU | STDR402 |
|---|---|
| Product | STDR402 - Seagate Backup Plus Slim Case |
| Stock status | In Stock |
| Detail page | View STDR402 › |
Drop-in replacements for STDR402
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.
STDR2000102 - Seagate Backup Plus SLIM 2TB USB 3.0 External Hard Drive
SKU: STDR2000102
Price: $357.09
STDR2000100 - Seagate Backup Plus SLIM 2TB USB 3.0 External Hard Drive
SKU: STDR2000100
Price: $400.45
STDT2000100 - Seagate Backup Plus 2TB USB 3.0 3.5-inch External Hard Drive
SKU: STDT2000100
Price: $259.50
STHP4000400 - Seagate Backup Plus 4TB USB 3.0 Portable External Hard Drive
SKU: STHP4000400
Price: $318.32
STDT4000100 - Seagate Backup Plus 4TB USB-3.0 3.5-inch External Hard Drive
SKU: STDT4000100
Price: $318.32
ST9120821AS - Seagate Momentus 120GB 5400RPM SATA Laptop 8MB Cache 2.5-inch Ultra- Slim Line Hard Drive
SKU: ST9120821AS
Price: $113.68
LAC9000342 - Seagate Porsche Design P9223 120GB USB 3.0 Slim External Solid State Drive
SKU: LAC9000342
Price: $197.53
ST960822A - Seagate Momentus 60GB 5400RPM EIDE Laptop 8MB Cache ATA-100 ultra 2.5-inch Ultra- Slim Line 9 Hard Drive
SKU: ST960822A
Price: $395.34
9W2083-307 - Seagate Seagate Barracuda 7200.7 Plus 120GB 7200RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 3.5-inch Hard Drive
SKU: 9W2083-307
Price: $153.67
ST3120022AS - Seagate BarraCuda 7200.7 Plus 120GB SATA 1.5Gb/s 7200RPM 8MB Cache 3.5-inch Hard Drive
SKU: ST3120022AS
Price: $165.79
ST3120026A - Seagate BarraCuda 7200.7 Plus 120GB 7200RPM ATA-100 8MB Cache 3.5-inch Hard Drive
SKU: ST3120026A
Price: $235.79
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.