Dell HBA355 HBA350 Host Bus Adapter Users Guide

The Dell Technologies Host Bus Adapter series, specifically the HBA355i Adapter, HBA355i Front, HBA355e Adapter, HBA350i MX, and HBA350i Adapter, provides enterprise-grade non-RAID storage connectivity for PowerEdge server infrastructure. These PCIe Gen 4 x8 host interface cards are built around LSI Fusion-MPT controllers, utilizing the SAS3816 or SAS3808 silicon to manage data traffic efficiently. While they lack traditional system memory, they incorporate substantial queue depths ranging from 7552 to 8320 entries to handle concurrent I/O requests. The form factors cater to diverse chassis layouts, offering standard rear-mounted adapters, front-facing carrier designs, external multi-port controllers, and modular MX sled variants. Storage capacity scales according to the selected model, with the HBA355i variants supporting up to sixteen internal SAS or SATA drives per controller, while the HBA350i models are optimized for eight-drive direct connections. The external HBA355e Adapter expands beyond internal bays to support dual-path configurations with MD1400, MD1420, and ME484 JBOD enclosures, as well as LTO 6 through 8 tape drives for archival workflows.

Security and operational reliability are enforced through a Hardware Root of Trust that authenticates all firmware components before execution, ensuring only verified code runs on the controllers. Management is streamlined across the IT lifecycle via the pre-boot Human Interface Infrastructure utility, Dell OpenManage Storage Management, and full integration with Integrated Dell Remote Access Controller and Lifecycle Controller tools. Administrators can update firmware through Dell Update Packages or command-line interfaces, with robust driver support spanning Windows Server 2016 and later, Red Hat Enterprise Linux, SUSE Linux, and VMware ESXi. Multipath I/O capabilities are thoroughly documented for both Windows and Linux environments, allowing redundant data paths to balance load and maintain continuous access to physical disks without OS-level intervention.

These Dell Technologies Host Bus Adapter models directly address the needs of system architects and data center professionals seeking high-performance direct-attached storage expansion without software RAID overhead. They enable seamless integration into existing PowerEdge R-series, T-series, and MX deployments, making them ideal for virtualization hosts, hyperconverged infrastructure nodes, and large-scale backup or cold-storage environments. Buyers relying on the Dell HBA355i Adapter, HBA355e Adapter, and related models gain a flexible, secure, and highly manageable foundation for scaling raw disk capacity while maintaining enterprise-grade fault tolerance and simplified hardware lifecycle control.