Replacement for 400-ATKS: Drop-In Alternatives We Stock
Looking for a replacement for the 400-ATKS (400-ATKS - Dell 8TB 7200RPM SAS 12Gb/s (512e) 3.5-inch Nearline Hard Drive for PowerEdge R740XD / R7425 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-ATKS
| SKU | 400-ATKS |
|---|---|
| Product | 400-ATKS - Dell 8TB 7200RPM SAS 12Gb/s (512e) 3.5-inch Nearline Hard Drive for PowerEdge R740XD / R7425 Server |
| Current price | $563.16 |
| Stock status | In Stock |
| Detail page | View 400-ATKS › |
Drop-in replacements for 400-ATKS
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-AUXC - Dell 8TB 7200RPM SAS 12Gb/s 512e Hot-Pluggable 3.5-inch Nearline Hard Drive for PowerEdge T440 Server
SKU: 400-AUXC
Price: $352.63
400-AMRY - Dell 8TB 7200RPM SAS 12Gb/s Hot-Swappable 3.5-inch Nearline Hard Drive for PowerEdge R230 Server
SKU: 400-AMRY
Price: $584.21
400-AMRX - Dell 8TB 7200RPM SAS 12Gb/s Self-Encrypting Hot-Swappable 3.5-inch Nearline Hard Drive for PowerVault MD3400
SKU: 400-AMRX
Price: $742.34
400-AMJF - Dell 8TB 7200RPM SAS 12Gb/s Self-Encrypting 3.5-inch Nearline Hard Drive with Tray for PowerEdge R230 / R730xd Server System
SKU: 400-AMJF
Price: $742.34
400-AMSB - Dell 8TB 7200RPM SAS 12Gb/s Self-Encrypting 3.5-inch Nearline Hard Drive with Tray for PowerEdge R230 / PowerVault MD3400 Server System
SKU: 400-AMSB
Price: $742.34
400-AMSC - Dell 8TB 7200RPM SAS 12Gb/s Self-Encrypting 3.5-inch Nearline Hard Drive with Tray for PowerEdge R320 / R730xd Server System
SKU: 400-AMSC
Price: $742.34
Dell Dell HHRYF Dell 0HHRYF / HHRYF 8TB 7200RPM 12Gb/s SAS 512e Hot-Pluggable Nearline 3.5-Inch Hard Drive With Tray For PowerEdge Server & PowerVault Server
SKU: DELL HHRYF
Price: $440.79
Dell Dell GKGNX Dell 0GKGNX / GKGNX 8TB 7200RPM 12Gb/s SAS 512e Hot-Pluggable Nearline 3.5-Inch Hard Drive With Tray For PowerEdge Server & PowerVault Storage Array
SKU: DELL GKGNX
Price: $440.79
Dell Dell CDDMJ Dell 0CDDMJ / CDDMJ 8TB 7200RPM SAS 12Gb/s Hot-Pluggable (4Kn) 3.5-Inch Nearline Hard Drive with Tray for PowerEdge Server & PowerVault Server
SKU: DELL CDDMJ
Price: $447.37
Dell Dell RMRRW Dell 0RMRRW / RMRRW 8TB 7200RPM 12Gb/s SAS Hot-Pluggable Self-Encrypting Drives (SED) Nearline 3.5-Inch Hard Drive With Tray For PowerEdge Server & PowerVault Server
SKU: DELL RMRRW
Price: $526.32
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.