VELLEDQ Industrial Pre-Wired M12 4-Pin D-Coding Male Connector to RJ45 E4 Plug ETHERNET Cable 1M/3FT Shielded Line : Amazon.in: Computers & Accessories
Sick SSL-2J04-G02ME CONNECTOR CABLE, M12 MALE 4 PIN STRAIGHT D TO RJ45 MALE 8 PIN STRAIGHT, 2M PUR CABLE | Kempston Controls
totally thought I knew what it was when someone asked what kind of connector it was. turns out it's about 30% smaller than an rj45... 3/4"L x 3/8" W x 1/4" H.
RJ45 Pinout Wiring Diagram for Ethernet Cat 5, 6 and 7 - Satoms
M12 D-Code 4 Pin Female Connector to RJ45 Ethernet Cable