Replacement for 1XJ203-185: Drop-In Alternatives We Stock
Looking for a replacement for the 1XJ203-185 (Seagate 1XJ203-185 Enterprise Performance 10K 1.8TB 10000RPM Multi-Level Cell SAS 12Gb/s 256MB Cache (512e) 2.5-Inch Hard Drive. In Stock)? 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 1XJ203-185
| SKU | 1XJ203-185 |
|---|---|
| Product | Seagate 1XJ203-185 Enterprise Performance 10K 1.8TB 10000RPM Multi-Level Cell SAS 12Gb/s 256MB Cache (512e) 2.5-Inch Hard Drive. In Stock |
| Stock status | In Stock |
| Detail page | View 1XJ203-185 › |
Drop-in replacements for 1XJ203-185
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.
1FE200-185 - Seagate Performance 10K.8 900GB 10000RPM SAS 12Gb/s 128MB Cache (CE) 2.5-inch Enterprise Hard Drive
SKU: 1FE200-185
Price: $677.78
1FD200-185 - Seagate Performance 10K.8 600GB SAS 12Gb/s 128MB Cache (CE) 2.5-inch Enterprise Hard Drive
SKU: 1FD200-185
Price: $529.58
ST900MM0068 - Seagate Performance 10K 900GB 10000RPM Multi-Level-Cell SAS 12Gb/s Enterprise SED 2.5-inch Hard Drive
SKU: ST900MM0068
Price: $291.79
ST900MM0108 - Seagate Performance 10K 900GB 10000RPM Multi-Level-Cell SAS 12Gb/s Enterprise SED 2.5-inch Hard Drive
SKU: ST900MM0108
Price: $291.79
ST900MM0038 - Seagate Performance 10K 900GB 10000RPM Multi-Level-Cell SAS 12Gb/s Enterprise SED 2.5-inch Hard Drive
SKU: ST900MM0038
Price: $392.99
ST900MM0148 - Seagate Performance 10K 900GB 10000RPM Multi-Level-Cell SAS 12Gb/s Enterprise SED 2.5-inch Hard Drive
SKU: ST900MM0148
Price: $595.17
ST600MM0038 - Seagate Performance 10K 600GB 10000RPM Multi-Level-Cell SAS 12Gb/s Enterprise SED 2.5-inch Hard Drive
SKU: ST600MM0038
Price: $623.70
ST600MM0178 - Seagate Performance 10K 600GB 10000RPM Multi-Level-Cell SAS 12Gb/s Enterprise SED 2.5-inch Hard Drive
SKU: ST600MM0178
Price: $772.04
9FJ066-185 - Seagate Savvio 10K.3 146GB 10000RPM SAS 6Gb/s 16MB Cache (512e) 2.5-inch Hard Drive
SKU: 9FJ066-185
Price: $85.82
9TG066-185 - Seagate Savvio 10K.5 600GB 10000RPM SAS 6Gb/s 64MB Cache 2.5-inch Hard Drive
SKU: 9TG066-185
Price: $529.58
ST600MM0008 - Seagate Performance 10K.8 600GB 10000RPM SAS 12Gb/s 128MB Cache 2.5-inch Enterprise Hard Drive
SKU: ST600MM0008
Price: $68.42
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.