Model: HTB-3100A/B, 25KM. Transmission distance: Up to 25KM. 2 x Ethernet to fiber converter (A and B). Interface: RJ45-UTP, fiber SC (single mode). And its high recognize ability with hot-swappable function so that it is easy for maintenance.
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2.5G PICE To RJ45 Network Card RTL8125B chip 2500Mbps RJ45 PCI Express Converter Lan Ethernet Gigabit Adapter For Win7/8/10/11
Aliexpress UK
1 RJ45 ports and 1 SC optical port. 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
5Gbps USB 3.2 Type C Ethernet Adapter RJ45 Network Card for Windows 11 PC/Laptop USB-C RTL8157 Chip Converter Lan Internet Cable
Aliexpress UK
Ethernet ports support full / half duplex mode. Optical fiber port: Single mode, SC. Each port has the complete LED Indicator light for installation, commissioning and maintenance. 2x DC5V Power Adapter.
eBay
2500Mbps USB 3.0 Type-C Ethernet To RJ45 2.5G USB2.0 Wired Adapter Converter Lan Network Hub For Windows 8.1/10/11 For PC Laptop
Aliexpress UK
Colour: Dual Fibre (1pcs). It is new and boxed. Fiber Port: 1.25G, SC, 1310-nm, SMF, Dual SC. Hardware interface: Ethernet. Data link protocol: Ethernet.
eBay
Ourlife RJ45 Network Switch Hub 1 In 4 Out Converter 1000Mbps Gigabit Ethernet Switch Hub Wire Divider PC LAN Extend Adapter
Aliexpress UK
Transmission Distance: 3km. Connector Type: RJ45. Ethernet ports support full / half duplex mode. Optical fiber port: Single mode, SC. Each port has the complete LED Indicator light for installation, commissioning and maintenance.
eBay
5Gbps USB 3.2 Type C Ethernet Adapter RJ45 Network Card for Windows 11 PC/Laptop USB-C RTL8157 Chip Converter Lan Internet Cable
Aliexpress UK
Do you want a kind of converter to convert optical to RJ45 connector?. Do you want to convert optical signal into Ethernet signal?. This can be your best choice. Really practical and useful, just install it where you needed.
eBay
SC UPC APC Optical Fiber Connector Panel Shield CAT6 RJ45 Network Socket Wall Faceplate For Internet SC-SC Optical Extentor Plug
Aliexpress UK
1 x Gigabit ethernet over fiber converter (A). 1 x Gigabit ethernet over fiber converter (B). Fiber Type: SC SMF, Single SC. Transmission distance: up to 20Km(12.4Miles). Fiber Port: 20KM SC transceiver included (1.25G, Single-mode, Wavelength 1310/1550nm).
eBay
hasivo Web Managed 2.5Gps PoE Or Non PoE 4 Port Switch +1x10Gps RJ45 ++1x10G SFP+ fiber optical Uplink
Aliexpress UK
Connector Type: RJ45. Ethernet ports support full / half duplex mode. Optical fiber port: Single mode, SC. Each port has the complete LED Indicator light for installation, commissioning and maintenance.
eBay