Replacement for 400-AEFS: Drop-In Alternatives We Stock
Looking for a replacement for the 400-AEFS (400-AEFS - Dell 1.2TB 2.5-inch 6GB/s 10000RPM SED FIPS 140-2 HS SAS Hard Drive)? 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-AEFS
| SKU | 400-AEFS |
|---|---|
| Product | 400-AEFS - Dell 1.2TB 2.5-inch 6GB/s 10000RPM SED FIPS 140-2 HS SAS Hard Drive |
| Current price | $240.00 |
| Stock status | In Stock |
| Detail page | View 400-AEFS › |
Drop-in replacements for 400-AEFS
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-AENY - Dell 1.2TB 10000RPM SAS 6Gb/s Hot-Swappable (SED FIPS 140-2) 2.5-inch Hard Drive
SKU: 400-AENY
Price: $1,454.29
342-5882 - Dell 1.2TB 10000RPM SAS 6Gb/s Hot-Swappable (SED FIPS 140-2) 2.5-inch Hard Drive
SKU: 342-5882
Price: $1,583.70
342-5886 - Dell 1.2TB 10000RPM SAS 6Gb/s Hot-Swappable (SED FIPS 140-2) 2.5-inch Hard Drive
SKU: 342-5886
Price: $1,583.70
Dell 400-BGZH 3.84TB SAS 12Gb/s Hot-Pluggable Read intensive Self-Encrypting Fips -140 Sed 2.5-Inch Solid State Drive With Tray For 14g PowerEdge Server
SKU: 400-BGZH
Price: $3,257.89
Dell 400-BGJU 3.84TB Triple-Level Cell SAS 12Gb/s Hot-Pluggable Read Intensive SED Fips 140 2.5-Inch Solid State Drive for Poweredge C6420/C6520
SKU: 400-BGJU
Price: $3,257.89
Dell 400-BGZE 3.84TB SAS 12Gb/s Hot-Pluggable Read intensive Self-Encrypting Fips -140 Sed 2.5-Inch Solid State Drive With Tray For 14g 15g 16g PowerEdge Server
SKU: 400-BGZE
Price: $3,257.89
Dell 400-BGZD 3.84TB SAS 12Gb/s Hot-Pluggable Read intensive Self-Encrypting Fips -140 Sed 2.5-Inch Solid State Drive With Tray For 14g PowerEdge Server
SKU: 400-BGZD
Price: $3,257.89
Dell 400-BGZI 3.84TB SAS 12Gb/s Hot-Pluggable Read intensive Self-Encrypting Fips -140 Sed 2.5-Inch Solid State Drive With Tray For PowerEdge Server
SKU: 400-BGZI
Price: $3,257.89
Dell 400-BMHW 3.84TB Triple-Level Cell SAS 12Gb/s Hot-Pluggable Mixed Use (512e) SED Fips 140-2 2.5-Inch Solid State Drive for Poweredge C6420/C6520
SKU: 400-BMHW
Price: $3,321.05
Dell 400-BEOY 3.84TB Triple-Level Cell SAS 12Gb/s Hot-Pluggable Mixed Use SED Fips 140-2 2.5-Inch Solid State Drive for Poweredge FD332
SKU: 400-BEOY
Price: $3,321.05
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.