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726903-B21: HPE H241 12Gb 2-ports Ext Smart Host Bus Adapter

HPE 726903-B21 HBA
HPEHBAs

Also listed as: 777986-001, 726909-001, 726909-002 · made by Microchip

The HPE H241 12Gb 2-ports Ext Smart Host Bus Adapter is an external PCIe 3.0 x8 SAS HBA engineered for HPE ProLiant Gen9 servers. Featuring two external Mini-SAS HD ports, it connects servers directly to external SAS JBOD enclosures like the D3600 and D3700 as well as StoreEver tape automation libraries.

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Specifications

Part number726903-B21
BrandHPE
Made byMicrochip
TypeHBAs
Other numbers777986-001, 726909-001, 726909-002
Statusend of sale
Host interfacePCIe 3.0 x8 low-profile / standard height
Storage interface12Gb/s SAS, 6Gb/s SATA
External ports8 external physical lanes across 2x Mini-SAS HD (SFF-8644) connectors
CacheNo cache (zero-memory HBA)
Raid levelsSimple RAID 0, RAID 1, RAID 5 (software-assisted) and direct HBA mode
Mixed modeSimultaneous RAID and passthrough mode

About the 726903-B21

726903-B21 is the HPE H241 12Gb 2-ports external Smart Host Bus Adapter, delivering 12Gb/s SAS and 6Gb/s SATA connectivity for external storage attachments on ProLiant Gen9 servers. Equipped with dual external Mini-SAS HD ports, it facilitates direct connections to shared storage arrays, JBOD expansion shelves, and backup tape units.

Compatibility

Compatible across HPE ProLiant Gen9 servers featuring standard PCIe slots, including DL380 Gen9, DL360 Gen9, DL160 Gen9, DL180 Gen9, DL120 Gen9, DL60 Gen9, DL80 Gen9, DL560 Gen9, DL580 Gen9, ML350 Gen9, ML110 Gen9, ML150 Gen9, Apollo 4200 Gen9, and Synergy 480 Gen9.

How to identify a genuine unit

Low-profile PCIe 3.0 x8 half-length add-in card with two external Mini-SAS HD (SFF-8644) connectors mounted on the rear metal bracket. Product label shows option part number 726903-B21, spare part number 777986-001, and assembly part number 726909-001.

Buying used

Inspect external port metal shielding shells for physical bending or crushed internal contact pins. Confirm that external SFF-8644 cable connectors latch smoothly. Power on the card in a server to ensure iLO 4 and the operating system detect the external controller without PCI bus errors.

Reference prices (last 12 months, updated 2026-10-27)

Used: USD 30 (1 sighting, Oct 2026)

All sightings
SellerConditionPriceNoteSeen
ebay.comusedUSD 30Tested working HPE H241 12Gb External SAS HBA2026-10-27

Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.

Fits these models

Works together

How the HPE 726903-B21 connects to servers, storage and the network: 1 way, with the hardware on each path.

Direct-attached SAS

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.

Storage

Direct-attached SAS: how it fits together

Plan and size it

Check compatibility with HPE

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that HPE has tested with the HPE 726903-B21.

Equivalent part numbers

FAQ

What external storage enclosures work with the H241 HBA?

The H241 connects to HPE D3600 (LFF), D3700 (SFF), D6000 disk enclosures, and HPE StoreEver MSL tape libraries using external SFF-8644 SAS cables.

Does the H241 support dual-domain SAS cabling?

Yes, using both external ports connected to dual-controller JBOD enclosures, redundant dual-domain SAS paths are supported.

Buying or selling 726903-B21?

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.

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