HP 729554-001-HIGH (H221) is an enterprise-class SAS Host Bus Adapter (HBA) designed to connect servers to external SAS storage systems. Built on PCI Express 3.0 architecture, it delivers reliable, high-speed data transfer for storage expansion, backup systems, and data center environments.
This adapter supports 6Gb/s SAS connectivity and is commonly used in HP ProLiant servers and compatible systems to connect disk enclosures or JBOD arrays. It is based on LSI SAS controller technology and operates in IT (initiator target) mode, making it ideal for environments like ZFS, virtualization, and software-defined storage.
Key Features
- Manufacturer: HP / HPE
- Part Number: 729554-001-HIGH
- Model: H221
- Product Type: SAS Host Bus Adapter (HBA)
- Interface: PCI Express 3.0 x8
- Data Transfer Rate: 6Gb/s SAS
- Ports:
- 2 × external Mini-SAS (SFF-8088)
- Up to 8 SAS lanes (wide ports)
- Bracket Type: High-profile (full height)
- Application: External storage connectivity, JBOD, SAN, backup systems
Technical Specifications
- Controller Type: 6Gb/s SAS HBA
- Host Interface: PCIe 3.0 (backward compatible with PCIe 2.0)
- Total Bandwidth: Up to ~48Gb/s theoretical (aggregate)
- Form Factor: Plug-in card (high-profile bracket)
- Connector Type: External Mini-SAS SFF-8088
- Compatibility: HP ProLiant Gen8/Gen9 and other PCIe servers
- Mode: Non-RAID (IT mode – direct disk access)
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