No box, but unused.
eBay
2-in-1 USB 3.0 2.5G Ethernet Adapter Type-C to RJ45 2500Mbps Rtl8156B Network Card Cat7/8 LAN Converter for NAS Laptop Desktop
Aliexpress UK
10/100M optical port is full duplex mode ;Ethernet port 10/100M adaptive mode. Ethernet interface can adaptively direct line / crossover cable connection. Ethernet ports support full / half duplex mode.
eBay
1pcs NEWEST Crystal Head RJ45 Male to USB 2.0 AF A Female Adapter Connector Laptop LAN Network Cable Ethernet Converter plug
Aliexpress UK
RJ45 electrical port can automatically adapt to 10/100/1000M and full-duplex/half-duplex transmission mode, it is a real gigabit adaptive fiber optic transceiver. Do you want a kind of converter to convert optical to RJ45 connector?.
eBay
USB Type C Ethernet Adapter USB 3.0 1000Mbps Network Card to RJ45 Lan Wired Adapter Converter Lan Network Hub for PC Windows
Aliexpress UK
Appears to be in very good condition. Powers on, not tested further. I do not know if it works. Minor marks.
eBay
2pcs USB Female to RJ45 Male Ethernet Adapter Converter Cable Connector Network for Camera Router ADSL Modem Laptop Desktop
Aliexpress UK
Connector: RJ45 Connector. Ethernet Port LED Indicators: Easy to see LED indicators provide status to easily monitor network activity. 1 x Converter. Colour: Black. Connector: SC Connector, Core: 8.3um, 8.7um, 9um, 10um On Single Mode Fiber.
eBay
MZX 5000Mbps Network Card Adapter USB 3.0 A Type C 5G 2.5G RTL8156 RJ45 Lan Ethernet Wired Gigabit Converter Laptop Networking
Aliexpress UK
10/100M optical port is full duplex mode ;Ethernet port 10/100M adaptive mode. Ethernet interface can adaptively direct line / crossover cable connection. Ethernet ports support full / half duplex mode.
eBay
Gigabit Ethernet LAN Low Profile PCI Express (PCIe) Network Controller Card 10/100/1000M RJ-45 RJ45 LAN Adapter Converter For PC
Aliexpress UK
Includes an optical interface (10G SFP port), RJ45 network port, and compatibility with protocols like IEEE802.3/802.3U/802.3X. Operates within -30°C to 70°C and 5-12V DC, with clear LED indicators. Advanced 10G SFP Transceiver.
eBay
1pcs RJ45 Male To Female Converter 90 Degree Extension Adapter for Cat5 Cat6 LAN Ethernet Network Cable Connector Extender
Aliexpress UK
Optical Interface : FC (SC optional). Support Protocol: IEEE 802.3U 100Base-TX, 10 / 100M Ethernet standard. • 1x Video Transmitter. Video signal to noise ratio (weighted): S / N ≥ 70dB (maximum optical link loss).
eBay
HDMI Extender Over Ethernet Cat5e/6 Up to 130Ft Adapter Converter Power Over Cat Support 4K30Hz 1080p with POC HDCP EDID VPFET
Aliexpress UK