This modular adapter has a DB9 female connector that plugs into DB9 RS232 serial port and converts it to an RJ45 connection. These modular adapters convert from a DB9 to an RJ45 socket jack (female).
eBay
LAN RJ45 Coupler 10G Cat6A 90 Degree Angled Shielded Keystone Jack RJ 45 Female Splitter For Panel
Aliexpress UK
Type: to DB9 female, to DB9 male(optional). Size: about 50cm/19.6", 1m/3.28ft, 1.5m/4.92ft, 2m/6.56ft, 3.0m/9.84ft, 5m/16.4ft. Multilayer shielding, fast speed transmission.
eBay
1pcs RJ45 Ethernet Splitter Cable 1 Male to 2/3 Female LAN Ethernet Splitter for Cat5 Cat6 LAN
Aliexpress UK
For data transmission, this cable is perfect for professional, networking engineers, and computer enthusiasts. Upgraded your option with this cable and experiences enhances performances. Connect devices to your networking and enjoy the convenience of data transfer.
eBay
8P4C / RJ45 male RJ11 6P4C to female M / F Adapter telephone Ethernet
Aliexpress UK
This modular adapter has a DB9 female connector that plugs into DB9 RS232 serial port and converts it to an RJ45 connection. These modular adapters convert from a DB9 to an RJ45 socket jack (female).
eBay
Cat8 Ethernet Extension Cable With Panel Mount Screw RJ45 40Gbps Cat 8 6 5 Male To Female RJ 45 CAT6
Aliexpress UK
Weight: 60 grams Colour: Grey. nd Class 2?. We will try to respond to you within 24 hours. Item requires individual pricing.
eBay
USB Extender Adapter USB Male to Female Extender USB to Rj45 Extension over Cat5e Cat6 Support For
Aliexpress UK
This modular adapter has a DB9 female connector that plugs into DB9 RS232 serial port and converts it to an RJ45 connection. These modular adapters convert from a DB9 to an RJ45 socket jack (female).
eBay
CAT5E Ethernet Waterproof Cable,rj45 IP67 Male To Female Panel Mount Extender Water Proof Connector
Aliexpress UK
This modular adapter has a DB9 female connector that plugs into DB9 RS232 serial port and converts it to an RJ45 connection. These modular adapters convert from a DB9 to an RJ45 socket jack (female).
eBay
High quality 90 degree up down left right Angled RJ45 Cat 5e 6e Cat7 Male to Female Lan Ethernet
Aliexpress UK
RS232 9-Pin Serial to RJ45 Cat5 Ethernet. 1 9-Pin DB9 Serial RS232 Port to RJ45 Cat5 Ethernet LAN Rollover Console Cable. Adjustable Trigger Finger Splint Straightener Corrector Brace Support Protector.
eBay
Vention Ethernet Cable RJ45 Cat 7 Extender Cable Male to Female Lan Network Extension Cable 1m 2m 3m
Aliexpress UK