Even Faster than Before performance for the AS-U2.5G2, when connected to a Lockerstor 4 performs 12% faster than the AS-U2.5G. Sequential. Aluminum Casing The all new aluminum casing provides the AS-U2.5G2 better heat dissipation than the first generation AS-U2.5G. Gaming-Inspired Red 2.5-Gigabit Ethernet Port The AS-U2.5G2 comes with a red-colored 2.5-Gigabit Ethernet port making it easily identifiable as one fast Ethernet adapter. Lighter The AS-U2.5G2 is 63% lighter than the first generation AS-U2.5G at 33 g. Efficient The AS-U2.5G2 now uses only 675 mWh of power, dropping energy usage by up to 66% compared with the first generation AS-U2.5G. Upgrade Your Devices to 2.5-Gigabit Ethernet The AS-U2.5G2 can be easily plugged into a desktop or laptop to provide up to 2½ times the speed of Gigabit Ethernet. Combine the AS-U2.5G2 in a PC with a Lockerstor NAS 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-U2.5G2 one of our most flexible network cards ever. Make Your NAS Fast Again The AS-U2.5G2 is able to upgrade your Gigabit-Enabled ASUSTOR NAS to 2.5-Gigabit speeds using a USB 3.2 Gen1 port. Supports ADM 3.4 and above. The AS-U2.5G2 comes with a USB Type-A adapter, enabling compatibility with virtually any device. Simple Installation The AS-U2.5G2 easily connects to Windows, Mac, Linux and ADM machines and is compatible with any network switch that supports 2.5-Gigabit connections. Cat 5e cables are fully supported and no additional drivers are required.