The Megabit Modem 300S is a high-performance SDSL Modem that connects individual power users or small LAN environments to a frames-over-SDSL service. The 300S may be used "back to back" with another 300S for simple LAN extension applications, or it may be used with the Avidia AV421 24-port SDSL module for high-density service provider applications. ADC's rate-selectable modems enable the user to manually rate select in order to obtain the best possible data rate for ADC's rate-selectable modems enable the user to manually choose transmission speed in order to obtain the best possible data rate for distance and line condition. Typically, subscribers close to the provider's point of presence will receive the highest data rate available, while subscribers far away will still be reachable at lower rates.

DOES NOT HAVE POWER CABLE.