Replacement for ST94813A: Drop-In Alternatives We Stock
Looking for a replacement for the ST94813A (ST94813A - Seagate Momentus 5400.2 40GB 5400RPM ATA-100 8MB 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 ST94813A
| SKU | ST94813A |
|---|---|
| Product | ST94813A - Seagate Momentus 5400.2 40GB 5400RPM ATA-100 8MB Cache 2.5-inch Hard Drive |
| Current price | $291.79 |
| Stock status | In Stock |
| Detail page | View ST94813A › |
Drop-in replacements for ST94813A
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.
ST9402116AB - Seagate Momentus 5400.3 40GB 5400RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache 2.5-inch Hard Drive
SKU: ST9402116AB
Price: $571.45
ST9408114A - Seagate Momentus 40GB 5400RPM ATA-100 8MB Cache 2.5-inch Hard Drive
SKU: ST9408114A
Price: $160.55
9W3232-030 - Seagate Momentus 5400.2 40GB 5400RPM ATA-100 8MB Cache 2.5-inch Hard Drive
SKU: 9W3232-030
Price: $226.08
9Y1082-301 - Seagate Momentus 40GB 5400RPM ATA-100 8MB Cache 2.5-inch Hard Drive
SKU: 9Y1082-301
Price: $237.49
9W3232-020 - Seagate Momentus 5400.2 40GB 5400RPM ATA-100 8MB Cache 2.5-inch Hard Drive
SKU: 9W3232-020
Price: $273.91
ST940815A - Seagate Momentus 5400.3 40GB 5400RPM ATA-100 8MB Cache 2.5-inch Hard Drive
SKU: ST940815A
Price: $305.05
ST94811A - Seagate Momentus 40GB 5400RPM ATA-100 8MB Cache 2.5-inch Hard Drive
SKU: ST94811A
Price: $344.84
9W3884-020 - Seagate Momentus 5400.2 120GB 5400RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9W3884-020
Price: $147.36
9W3039-040 - Seagate Momentus 5400.2 100GB 5400RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9W3039-040
Price: $157.88
9W3039-188 - Seagate Momentus 5400.2 100GB 5400RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9W3039-188
Price: $157.88
9W3039-020 - Seagate Momentus 5400.2 100GB 5400RPM IDE Ultra ATA/100 (ATA-6) 8MB Cache (CE) 2.5-inch Hard Drive
SKU: 9W3039-020
Price: $157.88
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.