CeeLok FAS-T Plug Kit, Black ZnNi, N-Key. Blazing Speed. Reduced Size and Weight. The new CeeLok FAS-T circular connectors, supporting 10-Gb/s Ethernet in a lightweight, compact size 8 M38999 interface. Small and rugged designed to 10GBASE-T or other 100 ohm applications. Mated condition: IP 67. Backshell integrated in plug body provides, low cost, low weight strain relief & EMI protection. 500 hour salt spray corrosion resistance. M39029 Style Contacts included. Field repairable.