Replacement for 400-ATKM: Drop-In Alternatives We Stock
Looking for a replacement for the 400-ATKM (400-ATKM - Dell 4TB 7200RPM SAS 12Gb/s (512n) 3.5-inch Nearline Hard Drive for PowerEdge R740XD / PowerVault NX3240 Server)? Pro Disk Network ships Dell 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 400-ATKM
| SKU | 400-ATKM |
|---|---|
| Product | 400-ATKM - Dell 4TB 7200RPM SAS 12Gb/s (512n) 3.5-inch Nearline Hard Drive for PowerEdge R740XD / PowerVault NX3240 Server |
| Current price | $187.37 |
| Stock status | In Stock |
| Detail page | View 400-ATKM › |
Drop-in replacements for 400-ATKM
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.
400-ASHY - Dell 4TB 7200RPM SAS 12Gb/s 512n Hot-Pluggable 3.5-inch Nearline Hard Drive with Tray for 14G PowerEdge C6420 / R7425 Server
SKU: 400-ASHY
Price: $292.63
400-ACZX - Dell 4TB 7200RPM SAS 12Gb/s 512n Hot-Pluggable 3.5-inch Nearline Hard Drive with Tray for 13G PowerEdge R230 / T630 Server
SKU: 400-ACZX
Price: $485.53
Dell Dell HKHJT Dell 0HKHJT / HKHJT 4TB 7200RPM 12Gb/s SAS Hot-Pluggable Self-Encrypting Drives (SED) Nearline 3.5-Inch Hard Drive With Tray For PowerEdge Server & PowerVault Storage Array
SKU: DELL HKHJT
Price: $697.37
FW4KG - Dell 4TB 7200RPM SAS 12Gb/s (512n) 3.5-inch Nearline Hard Drive for R740XD / R7425 Server
SKU: FW4KG
Price: $187.37
0FW4KG - Dell 4TB 7200RPM SAS 12Gb/s (512n) 3.5-inch Nearline Hard Drive for R740XD / R7425 Server
SKU: 0FW4KG
Price: $369.84
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.