Replacement for ST3640323AS: Drop-In Alternatives We Stock
Looking for a replacement for the ST3640323AS (ST3640323AS - Seagate BarraCuda 7200.11 640GB 7200RPM SATA 3Gb/s 32MB Cache Hot Swappable 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 ST3640323AS
| SKU | ST3640323AS |
|---|---|
| Product | ST3640323AS - Seagate BarraCuda 7200.11 640GB 7200RPM SATA 3Gb/s 32MB Cache Hot Swappable 3.5-inch Hard Drive |
| Current price | $439.64 |
| Stock status | In Stock |
| Detail page | View ST3640323AS › |
Drop-in replacements for ST3640323AS
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.
9FZ134-56B - Seagate BarraCuda 7200.11 640GB 7200RPM SATA 3Gb/s 32MB Cache (CE) 3.5-inch Hard Drive
SKU: 9FZ134-56B
Price: $157.88
9FZ134-500 - Seagate BarraCuda 7200.11 640GB 7200RPM SATA 3Gb/s 32MB Cache (CE) 3.5-inch Hard Drive
SKU: 9FZ134-500
Price: $438.16
9FZ134-300 - Seagate BarraCuda 7200.11 640GB 7200RPM SATA 3Gb/s 32MB Cache (CE) 3.5-inch Hard Drive
SKU: 9FZ134-300
Price: $442.11
9FZ134-568 - Seagate BarraCuda 7200.11 640GB 7200RPM SATA 3Gb/s 32MB Cache (CE) 3.5-inch Hard Drive
SKU: 9FZ134-568
Price: $442.11
9FZ164-033 - Seagate Barracuda 7200.11 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9FZ164-033
Price: $127.25
9FZ164-516 - Seagate Barracuda 7200.11 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9FZ164-516
Price: $331.58
ST3640623AS - Seagate BarraCuda 7200.11 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: ST3640623AS
Price: $349.43
9FZ164-916 - Seagate Barracuda 7200.11 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9FZ164-916
Price: $361.95
9FZ164-301 - Seagate Barracuda 7200.11 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9FZ164-301
Price: $361.95
9FZ164-100 - Seagate Barracuda 7200.11 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9FZ164-100
Price: $361.95
9FZ164-060 - Seagate Barracuda 7200.11 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: 9FZ164-060
Price: $361.95
ST3640630AS - Seagate BarraCuda 7200.11 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: ST3640630AS
Price: $361.95
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.