Computer Hardware Terms, Glossary and Dictionary

HBA: Host Bus Adaptor

Host Bus Adapter (HBA), also known as host adaptor, connects the computer with other network and storage devices. The terms are primarily used to refer to devices for connecting Fibre Channel and SCSI devices, but devices for connecting to ESCON, Ethernet, and other systems may also be called host adapters. Recently, the advent of iSCSI has brought about Ethernet HBAs, some including TCP Offload Engines.


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HBA: Host Bus Adaptor