Replacement for ST3100011AS: Drop-In Alternatives We Stock
Looking for a replacement for the ST3100011AS (ST3100011AS - Seagate 100GB 7200RPM SATA 1.5Gb/s 2MB Cache 3.5-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 ST3100011AS
| SKU | ST3100011AS |
|---|---|
| Product | ST3100011AS - Seagate 100GB 7200RPM SATA 1.5Gb/s 2MB Cache 3.5-inch Hard Drive |
| Current price | $76.41 |
| Stock status | In Stock |
| Detail page | View ST3100011AS › |
Drop-in replacements for ST3100011AS
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.
9W2072-175 - Seagate BarraCuda 7200.7 100GB 7200RPM ATA-100 2MB Cache 3.5-inch Hard Drive
SKU: 9W2072-175
Price: $369.84
ST310011A - Seagate BarraCuda 7200.7 100GB 7200RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 3.5-inch Hard Drive
SKU: ST310011A
Price: $511.28
ST3100011A-RK - Seagate BarraCuda 7200.7 100GB 7200RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 3.5-inch Hard Drive
SKU: ST3100011A-RK
Price: $621.63
ST9100821AS - Seagate Momentus 100GB 7200RPM SATA 8MB Cache 2.5-inch Hard Drive
SKU: ST9100821AS
Price: $273.91
ST910021AS - Seagate Momentus 100GB 7200RPM SERIAL ATA-150 SATA 2.5-inch 8MB Cache Hard Drive
SKU: ST910021AS
Price: $273.91
9S513E-070 - Seagate 100GB 7200RPM SATA 3Gb/s 8MB Cache 2.5-inch Hard Drive
SKU: 9S513E-070
Price: $273.91
9S3014-070 - Seagate 100GB 7200RPM SATA 1.5Gb/s 8MB Cache 2.5-inch Hard Drive
SKU: 9S3014-070
Price: $282.20
9S3014-021 - Seagate Momentus 7200.1 100GB 7200RPM SATA 1.5Gb/s 8MB Cache (RoHS) 2.5-inch Hard Drive
SKU: 9S3014-021
Price: $382.59
9S3014-750 - Seagate Momentus 7200.1 100GB 7200RPM SATA 1.5Gb/s 8MB Cache (RoHS) 2.5-inch Hard Drive
SKU: 9S3014-750
Price: $382.59
9S3014-022 - Seagate Momentus 7200.1 100GB 7200RPM SATA 1.5Gb/s 8MB Cache (RoHS) 2.5-inch Hard Drive
SKU: 9S3014-022
Price: $382.59
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.