Amazon.co.jp: Alvin's Cables M12 4 pin Male to RJ45 Male Network CAT5e Shielded Cord Industrial Ethernet Cable M12 4 Position D Coded to RJ45 Ethernet Cable 1M : Computers
Sick Ethernet M12 x 4 / RJ-45 connection cable 6036158
Ethernet, Continuous Flex, Cordset, Shielded Cable, Not shielded to coupling nut,4 Pole, M12 D-Coded Male Straight / M12 D-Coded Female Straight, 5M, Teal, TPE