WESTELL Model B90-28MA204AK Digital Termination Telephone -48VDC, 3 AMP REv:H. Listed Custom Tel Eq 57DF. S/N:07HA01016802. 11.HCGS.488033..PA PHHCXX481184TQWNX3 11.HCGS.488034..PA PHHCXX481184TQWNX4. Condition is Used. Shipped with USPS Priority Mail.