GLC-SX-MM Transceiver 550NM Part Number=GLC-SX-MM Brand=Cisco Category= GBIC Transceiver Type=Transceiver Wavelenght=550NM Condition=Refurbished; "Warranty=1 Year Warranty"We ship on an emergency basis and answer the phone 24 x 7 x 365. * Not Applicable to... Was: Now: $28.00 Add to Cart