HPE Backplane Kit/cage For Proliant Dl380 Gen10. This HPE Backplane Kit is a hardware component that connects the internal devices of a server or computer to the system’s mainboard. The backplane kit supports high-speed data transfer between the internal devices and the mainboard, allowing for faster communication and improved performance. The backplane kit is designed to be highly reliable and durable, reducing the risk of data loss or system failure. Additionally, it’s important to ensure that the firmware and drivers of the server are up to date before installing the backplane kit, to avoid any potential compatibility issues.