Amazon.com: Plugable 2.5G USB C and USB to Ethernet Adapter, 2-in-1 Adapter Compatible with USB-C Thunderbolt 3 or USB 3.0, USB-C to RJ45 2.5 Gigabit LAN Ethernet, Compatible with Mac and Windows :
USB 3.0 to SFP Gigabit Ethernet Adapter
StarTech.com USB C to Fiber Optic Converter - Open SFP - Network Adapter - US1GC30SFP - Ethernet Adapters - CDW.com
USB-C 3.2 Gen 1 to Fiber Optic Ethernet Adapter, SMF/MMF, LC, 5 km Range | Eaton
USB 3.2 Type-C (Plug or Receptacle) to SMA Breakout Board | Sinc-squared Main
Amazon.com: Sonnet Solo 10G Thunderbolt 3 to SFP+ 10 Gigabit Ethernet Adapter (SFP+ [SR] Included) : Electronics
Type C Gigabit Sfp Ethernet Fiber Adapter Usb3.1 To 1000m Network Card Lan Usb 3.1 Ethernet Rtl8153 Chip Linux External Laptop - Network Cards - AliExpress
Amazon.com: StarTech.com USB C to Fiber Optic Converter - Open SFP - 1000BASE-SX/LX - Windows / Mac / Linux - USB Ethernet Adapter - USB Network Adapter (US1GC30SFP) : Electronics
Amazon.com: StarTech.com USB C to Fiber Optic Converter - Open SFP - 1000BASE-SX/LX - Windows / Mac / Linux - USB Ethernet Adapter - USB Network Adapter (US1GC30SFP) : Electronics
Ubiquiti UACC-DAC-SFP10-0.5M SFP+ Direct Attach Cable
Amazon.com: SIIG USB-C to Fiber SFP Gigabit Ethernet Adapter, High Speed GB Transfer Rate (1000/100/10 Mbps), USB 3.0 Type-C to SFP Female, USB to Fiber Optic Converter, Realtek RTL8153 (JU-NE0C11-S1) : Electronics
QNA-T310G1S | Connect to 10GbE SFP+ networks over Thunderbolt™ 3 | QNAP (US)
USB 3.0 Fiber Optic Converter SFP Adaptr - USB and Thunderbolt Network Adapters | StarTech.com
USB-C 3.2 Gen 1 to Fiber Optic Ethernet Adapter, SMF/MMF, LC, 5 km Range | Eaton
QNA-T310G1S | Connect to 10GbE SFP+ networks over Thunderbolt™ 3 | QNAP (US)
StarTechcom, BNDTB210GSFP Miscellaneous Kits
Amazon.com: SIIG USB-C to Fiber SFP Gigabit Ethernet Adapter, High Speed GB Transfer Rate (1000/100/10 Mbps), USB 3.0 Type-C to SFP Female, USB to Fiber Optic Converter, Realtek RTL8153 (JU-NE0C11-S1) : Electronics
StarTech.com USB C to Fiber Optic Converter - Open SFP - Network Adapter - US1GC30SFP - Ethernet Adapters - CDW.com