DYNACOM 66NECBLOCK 66DS2-7 - 66 BLOCK FOR DSX AND SLDynacom 66 block prewired 7'For use with the NEC DS2000, SL1100, SL2100 and DSX systems1 Block will accommadate 24 portsVoice grade7 foot Hydra cable prewiredTerminated with 6 RJ45 plugsUSOC wired