The PREMISYS 887160, 259-8004-279 ADPCM 64 SS TENSR ADPCM SERVER CARD is a control board specifically designed for radio communication devices, such as walkie-talkies and two-way radios. It features 8 channels and is manufactured by the brand PREMISYS. This server card is an essential component for ensuring clear and efficient communication in a variety of consumer electronics devices.