Key Features . Conveniently upgrade a NAS laptop or desktop to 2.5-Gigabit EthernetCompatible with current network standards including Gigabit and 100-Megabit connections.Flexible compatibility. Compatible with ASUSTOR ADM 3.4 and above Windows macOS and LinuxUpgrade Your Devices to 2.5-Gigabit Ethernet The AS-U2.5G can be easily plugged into a desktop or laptop to provide up to 2½ times the speed of Gigabit Ethernet. Combine the AS-U2.5G with a Nimbustor 2 and 4 to enable in-home storage at speeds indistinguishable from local hard drive storage. Supports 2.5-Gigabit speeds while also being backwards compatible with Gigabit and 100-Megabit networks making the AS-U2.5G one of our most flexible network cards ever. Make Your NAS Fast Again The AS-U2.5G is able to upgrade your Gigabit-Enabled ASUSTOR NAS to 2.5-Gigabit speeds using the USB 3.2 Gen1 port. Supports ADM 3.4 and above..