Replacement for ST423451W: Drop-In Alternatives We Stock
Looking for a replacement for the ST423451W (ST423451W - Seagate Elite-23 23.2GB 5400RPM Wide Ultra SCSI 68-Pin 2MB Cache 5.25-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 ST423451W
| SKU | ST423451W |
|---|---|
| Product | ST423451W - Seagate Elite-23 23.2GB 5400RPM Wide Ultra SCSI 68-Pin 2MB Cache 5.25-inch Hard Drive |
| Current price | $502.53 |
| Stock status | In Stock |
| Detail page | View ST423451W › |
Drop-in replacements for ST423451W
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.
9E3003-022 - Seagate Elite-23 23.2GB 5400RPM Wide Ultra SCSI 68-Pin 2MB Cache 5.25-inch Hard Drive
SKU: 9E3003-022
Price: $583.12
9E3003-021 - Seagate Elite-23 23.2GB 5400RPM Wide Ultra SCSI 68-Pin 2MB Cache 5.25-inch Hard Drive
SKU: 9E3003-021
Price: $583.12
9K8005-023 - Seagate Cheetah 9LP 4.5GB 10000RPM Wide Ultra2 SCSI 68-Pin 1MB Cache (CE) 3.5-inch Hard Drive
SKU: 9K8005-023
Price: $382.59
9B0003-123 - Seagate BarraCuda 2LP 2.2GB 7200RPM Fast Wide SCSI 68-Pin 512KB Cache (CE) 3.5-inch Hard Drive
SKU: 9B0003-123
Price: $485.53
100236888 - Seagate U Series 20GB 5400RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 3.5-inch Hard Drive
SKU: 100236888
Price: $342.18
9V3005-023 - Seagate Cheetah 10K.6 73.4GB 10000RPM Ultra320 SCSI 68-Pin 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9V3005-023
Price: $263.75
ST39236LW - Seagate BarraCuda 9.19GB 7200RPM 68 -Pin Ultra160 SCSI 2MB Cache 3.5-inch Hard Drive
SKU: ST39236LW
Price: $589.97
9V4005-023 - Seagate Cheetah 10K.6 36.4GB 10000RPM Ultra320 SCSI 68-Pin 8MB Cache (CE) 3.5-inch Hard Drive
SKU: 9V4005-023
Price: $626.32
9R6005-023 - Seagate 73.4GB 10000RPM Ultra160 SCSI 68-Pin 4MB Cache 3.5-inch Hard Drive
SKU: 9R6005-023
Price: $700.00
9RZ168-236 - Seagate Constellation.2 1TB 7200RPM SATA 6Gb/s 64MB Cache 2.5-inch Hard Drive
SKU: 9RZ168-236
Price: $200.18
9RZ168-523 - Seagate Constellation.2 1TB 7200RPM SATA 6Gb/s 64MB Cache 2.5-inch Hard Drive
SKU: 9RZ168-523
Price: $200.18
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.