405-AAEP: Dell 12Gb/s SAS Expander Card for PowerEdge R740xd
Also listed as: 0V545N, V545N, EXP-SAS-R740XD · made by Foxconn
The Dell 405-AAEP is a Dell 12Gb/s SAS Expander Card for PowerEdge R740xd providing SAS 12Gb/s connectivity across Internal Mini-SAS HD Ports via Internal SAS Expander for Dell R740XD servers.
Specifications
| Part number | 405-AAEP |
|---|---|
| Brand | Dell |
| Made by | Foxconn |
| Type | HBAs |
| Other numbers | 0V545N, V545N, EXP-SAS-R740XD |
| Status | current |
| Interface | Internal SAS Expander |
| Speed | SAS 12Gb/s |
| Ports | Internal Mini-SAS HD Ports |
| Tdp (W) | 9 |
| Form factor | Internal Dedicated Bracket Card |
About the 405-AAEP
The Dell 405-AAEP is a Dell 12Gb/s SAS Expander Card for PowerEdge R740xd designed for the PowerEdge R740xd chassis. By multiplexing SAS controller channels across internal storage buses, the 405-AAEP allows a single PERC RAID controller or HBA to manage up to 24 front drives, internal mid-chassis drives, and rear flex bays simultaneously with 12Gb/s SAS transfer rates.
Compatibility
The 405-AAEP expander card is engineered specifically for Dell PowerEdge R740XD server systems. The 405-AAEP mounts into a dedicated internal chassis bracket adjacent to the front drive backplane and connects via proprietary internal Mini-SAS HD cable harnesses to PERC controllers and drive cages.
How to identify a genuine unit
Genuine Dell 405-AAEP expander boards feature a serialized Dell label showing DP/N 0V545N, Dell SAS Expander designation, and LSI/Broadcom expander ASIC markings. In iDRAC under System Inventory, the 405-AAEP reports as a recognized Dell storage component with monitored temperature telemetry.
Buying used
When evaluating a pre-owned 405-AAEP expander board, inspect the surface-mount capacitors and edge headers for physical damage or sheared components. Verify that the card mounting bracket on the 405-AAEP is straight and that connector latches are intact. Test inside an R740xd server to ensure all drive slots enumerate reliably.
Fits these models
Check compatibility with Dell
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Dell has tested with the Dell 405-AAEP.
- Compatibility Dell E-Lab Navigator (storage and SAN interoperability) (free vendor sign-in)
- Support Dell Support: drivers, manuals and service tag lookup
Equivalent part numbers
- Foxconn V545N-FOX Foxconn 12Gb/s SAS Expander Assembly OEM base
Buying or selling 405-AAEP?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Dell PowerEdge R740xd SAS Expander Specifications, checked 2026-10-27