Replacement for 4N40A33712: Drop-In Alternatives We Stock
Looking for a replacement for the 4N40A33712 (4N40A33712 - Lenovo (4 x 1TB) 7200RPM SATA 3Gb/s 64MB Cache 3.5-inch Hard Drive Multi-Pack)? Pro Disk Network ships IBM 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 4N40A33712
| SKU | 4N40A33712 |
|---|---|
| Product | 4N40A33712 - Lenovo (4 x 1TB) 7200RPM SATA 3Gb/s 64MB Cache 3.5-inch Hard Drive Multi-Pack |
| Current price | $785.96 |
| Stock status | In Stock |
| Detail page | View 4N40A33712 › |
Drop-in replacements for 4N40A33712
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.
45E7971 - IBM 1TB 7200RPM SATA 64MB Cache 3.5-inch Hard Drive (RoHS) for DS4243
SKU: 45E7971
Price: $138.95
81Y9719 - IBM 1TB 7200RPM SATA 6Gb/s 64MB Cache Hot-Swappable 2.5-inch Hard Drive
SKU: 81Y9719
Price: $357.61
45K0625 - IBM Lenovo 2TB 7200RPM SATA 6Gbps 64MB Cache 3.5-inch Hard Drive for ThinkStation S30 (type 0567 0568 0569 0606)
SKU: 45K0625
Price: $548.82
0A65633 - IBM Lenovo 1TB 5400RPM SATA 3GB/s 8MB Cache 2.5-inch Hard Disk Drive for ThinkPad
SKU: 0A65633
Price: $249.05
67Y1380 - IBM Lenovo 1TB 7200RPM SATA 3Gbps 32MB Cache 3.5-inch Hard Drive for ThinkServer
SKU: 67Y1380
Price: $406.79
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.