Delock Products 63934 Delock Bővítő RS-232 DB9 anya RJ45 anya - RS-232 DB9 apa RJ45 anya ESD védelem 1200 m távolságban széles hőmérsékleti keretben
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.
M12 to RJ45 Connector Adapter M12 4 Pin Straight Male to RJ45 Female Socket - Renhotecpro.com