I/O Modules

The I/O module is a component that controls how the controller and the drives interact.

The I/O module is connected to the controller or an I/O module on another drive enclosure.

A drive enclosure has two I/O modules, which makes it possible for a failed I/O module to be replaced while the system is running.

Figure: 2.5" NVMe Type I/O Modules

Figure: 2.5" SAS Type / 3.5" SAS Type I/O Modules

1. Backend (IN) port

   This port is used to connect between enclosures.

2. Backend (OUT) port

   This port is used to connect between enclosures.