QR491A: HPE M6720 24-Bays 3.5-inch SAS Drive 4U Storage Enclosure
MPN: QR491A|By: HPE

Starting from
$360
Indicative. Final pricing is confirmed with your quote.
In Stockships worldwide
- Condition:
- New (authorized channel)
- Warranty:
- Full manufacturer warranty
Prefer your own inbox? Email us about this part
Bulk order? Request volume pricing
Authorized & warrantied
Sourced through authorized distribution, with the full manufacturer warranty.
Compatibility checked
Validated against your server platform before dispatch.
Delivery & lead time
Confirmed with your quote, including expedited freight where available.
Business & public sector
POs, net terms and volume pricing for qualified organizations, government and edu.
Product overview
HPE lists QR491A as a M6720 24-Bays 3.5-inch SAS Drive 4U storage Enclosure. Drives, carriers and the enclosure are separate line items, and a shelf that arrives without carriers cannot be populated. This is a 4U enclosure. Tell us the drive count and we will quote the whole shelf.
The listed price is per unit and current; tell us the quantity and we will confirm what it holds at before you raise the order.
Specifications
General
- Manufacturer part number
- QR491A
- Product Type
- Storage Enclosures
- Manufacturer
- HPE
Interfaces & connectivity
- Drive Interface
- SAS
Physical
- Form Factor
- 3.5-inch
- Rack Units
- 4U
The table below is what the storage enclosure is documented as, not what we have inferred from the part number. If the figure you need is missing, ask and we will source it from the manufacturer.
Where the HPE QR491A is deployed
- Like-for-like replacement of QR491A in an existing system
- Consolidating loose drives into one managed chassis
- Replacing an enclosure at end of service life
Who this part is for
- Engineers checking daisy-chain limits before ordering expansion
- Integrators quoting enclosure, carriers and drives as one line
- Teams building bulk capacity behind an existing controller
What you get ordering this from us
Ordered by part number
The order is placed against QR491A, not against a description of it, so there is no room for a substitution you did not agree to.
Answered by a human
A quote comes back with the reasoning attached, including the cases where we think you should buy something else.
Compatibility checked
We confirm the part is supported on your platform before it ships, rather than leaving the check to you.
Questions buyers ask about this part
Is QR491A genuine and is the warranty intact?
Yes. It ships new in HPE packaging, which is what keeps the warranty and the firmware entitlement valid. Anything we cannot supply that way we tell you about before you order.
Will QR491A work in my server?
Send us the server model or service tag and we will confirm before you order. Part numbers alone do not always settle it: firmware revision and platform generation matter, and this is the check that prevents a return.
Do you accept purchase orders and quote at volume?
Yes. Purchase orders are accepted from qualified organisations, net terms are available on approval, and tiered pricing applies at quantity. Tell us how many you need.
Compare other Storage Enclosures we stock
| Model | Brand | Key spec | Availability | From |
|---|---|---|---|---|
| Supermicro CSE-846BE1C-R1K23JBOD 24-Bay 4U JBOD | Supermicro | Drive Bays: 24 x 3.5" | In Stock | $3,185 |
| Dell EMC PowerVault MD1400 12-Bay 2U Enclosure | Dell EMC | Drive Bays: 12 x 3.5" | In Stock | $3,055 |
| NetApp DS224C 24-Bay 2U Shelf | NetApp | Drive Bays: 24 x 2.5" | In Stock | $3,445 |
| Lenovo ThinkSystem D1212 12-Bay 2U Enclosure | Lenovo | Drive Bays: 12 x 3.5" | In Stock | $2,665 |
| Dell PowerVault 220s 14x Slots SCSI 3U External HDD Enclosure | Dell | Rack Units: 3U | In Stock | $465 |
| QNAP 12-Bay 2U Rackmount 10Gbps JBOD Expansion Unit | QNAP | Drive Bays: 12 | In Stock | $1,355 |
Browse all Storage Enclosures or everything we stock from HPE.
Specifying a system, not just the part?
Most parts we ship go into a system we also build and support.
