HPE 874566-B21 – ML350 Gen10 4LFF Drive Cage / Backplane Kit

HPE 874566-B21 – ML350 Gen10 4LFF Drive Cage / Backplane Kit

Overview

The HPE 874566-B21 is a 4LFF (Large Form Factor) drive cage and backplane kit designed for HPE ProLiant ML350 Gen10 servers. It enables internal storage expansion by supporting up to four 3.5-inch hot-plug hard drives within the server chassis.

It is used in enterprise server environments where additional high-capacity storage is required without external storage arrays. The backplane provides connectivity for SAS and SATA drives and integrates directly into the server’s internal storage subsystem.

The kit is installed inside compatible ML350 Gen10 tower servers and forms part of the front drive bay assembly. It ensures proper power distribution, data connectivity, and hot-swap capability for installed drives.

It is commonly deployed in SMB and enterprise infrastructures where scalable internal storage is needed for file services, virtualization, and backup workloads.

Typical Deployment Scenarios

Used in HPE ML350 Gen10 servers for expanding internal storage capacity with 3.5-inch LFF drives. Common in file servers, backup systems, virtualization hosts, and enterprise applications requiring high-capacity local storage with hot-plug support.

Technical Specifications

Compatibility / Ecosystem

Compatible with HPE ProLiant ML350 Gen10 tower server platforms. Works with HPE Smart Array controllers, SAS/SATA enterprise drives, and internal server storage subsystems for scalable LFF storage expansion.