Dell PowerStore NVMe Expansion Enclosure (ENS24)
The PowerStore NVMe expansion enclosure, labelled ENS24 in the Dell hardware guide, adds 24 2.5-inch NVMe drive slots in 2U to a PowerStore base appliance. It has two link controller cards that carry the PCIe switches and an access module, and two power supply modules. Dell documents it in the PowerStore hardware information guide.
Also written as: PowerStore expansion enclosure, PowerStore ENS24, PowerStore 24 drive NVMe expansion enclosure
Specifications
| Brand | Dell |
|---|---|
| Family | PowerStore |
| Form factor | 2U rack |
| Drive bays | 24x 2.5-inch NVMe drives |
| Controller modules | Two Link Controller Cards (LCC), each with an Access Module and Drive Interface Board |
| Power supply | Two power supply modules |
| Height cm | 8.89 |
| Width cm | 43.18 |
| Depth cm | 65.3 |
| Weight kg populated | 26.08 |
Works together
How the Dell PowerStore NVMe Expansion Enclosure (ENS24) connects to servers, storage and the network: 1 way, with the parts and products on each path.
Direct-attached SAS
12Gb SAS uses Mini-SAS HD (SFF-8644) connectors; older 6Gb gear uses Mini-SAS (SFF-8088). Adapter cables exist, but the link runs at the slower speed.
Servers
Dell PowerEdge R HS5610 1U rack
Dell PowerEdge R HS5620 2U rack
Dell PowerEdge R HS7710 1U rack
Dell PowerEdge R250 1U rack
Dell PowerEdge R260 1U rack (short-depth)
Dell PowerEdge R350 1U rack
Adapters for the server
405-AANT Dell 12Gbps SAS HBA Dual Port External PCIe Controller
405-AASU Dell HBA355e External SAS 12Gb/s Host Bus Adapter
HBA465E Dell HBA465e External Host Bus Adapter
05-50076-01 Broadcom HBA 9500-16e PCIe 4.0 Tri-Mode 16-Port External Host Bus Adapter
Plan and size it
- Draw this setup in the topology planner mrplanb.com
- Add up rack power and space rack-density.com
- LTO tape prices and archive advisor tapebackup.org
- Enterprise backup Ledger: backup software scored mrplanb.com
- LTO tape for backup mrplanb.com
- Dell E-Lab Navigator (Dell interoperability) dell.com
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 PowerStore NVMe Expansion Enclosure (ENS24).
- Compatibility Dell E-Lab Navigator (storage and SAN interoperability) (free vendor sign-in)
- Support Dell Support: drivers, manuals and service tag lookup
Equivalent models from other brands
Buying a used PowerStore NVMe Expansion Enclosure (ENS24): what to check
This is mostly relevant as an add-on to a current PowerStore system, so confirm the base appliance and PowerStoreOS version support it before buying. Check both link controller cards, both power supplies and that cable management arms and rails are included.
FAQ
How many drives does the PowerStore NVMe expansion enclosure take?
Twenty four 2.5-inch NVMe drives in a 2U enclosure, according to the Dell PowerStore hardware information guide.
What is inside the ENS24?
Two Link Controller Cards, each with an Access Module and a Drive Interface Board that holds the PCIe switches, plus two power supply modules.
Buying or selling PowerStore NVMe Expansion Enclosure (ENS24)?
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 PowerStore Hardware Information Guide, checked 2026-10-28