You can buy TE's mini I/O industrial Ethernet connector from TTI
Industrial Ethernet Interface Connectors
AIDA Imaging 8-Pin Mini-DIN to RJ45 Gender Changer Cable
Connectors And Ports Standart Detail Ethernet or Internet RJ45 cable connector and USB 3 near Audio Sound Output and Input microphone mini jack on Motherboard panel pc computer Stock Photo | Adobe Stock
Power over Ethernet (PoE) Splitter Adapter For Dot 3rd and (Nest Mini, – Mount Genie
White paper - Reliability comparison of RJ45 and Mini I/O - Eurocircuits
WyreStorm Mini-USB to Ethernet Extender APO-MIC-EXT B&H Photo
XingHD Connector 1 to 2 Way Parallel Wiring Small Ethernet Network Adapter - Walmart.com
Mini PushPull connector for industrial Ethernet ...
LAN Cat.6A connector with detachable cable - MyElectronics
Mini Ethernet Connectors | Save Space, Time & Money | Industrial
5 Pack) RJ45 Coupler, Metal Housing Ethernet Coupler for Cat5e/Cat6/Cat7 Ethernet Cable, Extender RJ45 Connector Female to Female, Mini Type,Blue - Walmart.com
Network Dual-pass Mini Black Network Connector Portable Female To Female Ethernet Lan Connection Adapter Extender Adapter - Pc Hardware Cables & Adapters - AliExpress
CAT6 Mini Patch Cable - 1.5 FT, Red, Booted at Cables N More
Rj45 Network Dual-pass Mini Black Network Connector Portable Female To Female Ethernet Lan Connection Adapter Extender - Tool Parts - AliExpress
Amazon.com: SinLoon Mini PCI-E Gigabit Ethernet Card PCI-Express Network Card 10/100/1000Mbps Drive-Free RJ45 LAN NIC Card for Desktop PC : Electronics
10Pcs USB A Female to Ethernet RJ45 Male Adapter Connector Router Adapter USB to RJ45 Female A to Ethernet Internet RJ45 - Walmart.com
Mini-ETH Single Pair Ethernet System | Aviation Pros