USB 3.1 Type C input and HDMI output. No adapter, no converter needed.Plug and play design, no external power and driver required with this cable. High Quality Material for Superior Conductivity,Gold-Plated connectors resist corrosion and provide durability.
eBay
Mini DP Male to HDMI-compatible Female Mini Displayport To HDMI-compatible Cable 4K Adapter 1080P For Apple MacBook Air Pro
Aliexpress UK
Genuine Apple HDMI to DVI Video Adapter for Mac mini-MacBook Pro MGVU2ZM/A Last few Hard to find
eBay
Type C to HDMI-compatible Cable USB C to HDMI Converter 4K 60Hz USB 3.1 HDTV Cable Adapter for MacBook Chromebook Samsung Xiaomi
Aliexpress UK
8-in-1 USBC, Type C USB C Hub 4K HDMI, Multiport Adapter Type C Dongle, Micro SD and SD Card Reader, USB-C and USB A Data Ports Compatible, MicroSD, USB Type C, Ethernet, HDMI, USB 3.0. Aluminium Shell.
eBay
CABLETIME Mini DisplayPort to HDMI Adapter 4K 60HZ Mini DP to HDMI LED Converter for MacBook Air 13 Surface Pro 4 Thunderbolt
Aliexpress UK
Provides you the extensive workspace and flexibility to solve any task. The maximum output resolution reaches 4K (1080P @ 60 Hz) via HDMI. USB C HUB 8 IN 1: USB-C hub adapter is compatible with all devices that include Type-C/USB ports, especially for MacBook Pro and Air.
eBay
MOKiN USB C Hub Multiport Docking Station USB Type C Hub HDMI Adapter Dual 4K HDMI 5Gbps USB3.0 PD 100W for Macbook Lenovo PC
Aliexpress UK
【4K HDMI-compatible Output】The HUB HDTV-compatible Port supports 4K 30hz or 2K 60hz Display. You can use the Type-C to HDMI-compatible Adapter to extend your device screen and receive crystal clear 4K UHD or full HD 1080P images on HDTV, PC Monitors or Projectors.
eBay
3 IN 1 USB PD HDMI Docking Station 4K Converter Adapter USB C to HDMI/USB 3.0/Type C For PC Laptop MacBook Huawei Samsung Xiaomi
Aliexpress UK
It is compatible with interfaces which equipped with mini DisplayPort (Thunderbolt port), such as MacBook air, iMac (before 2017), MacBook Pro(before 2016), Mac mini, Microsoft Surface Pro/Pro 2/Pro 3/Pro 4, Lenovo Thinkpad X1 Carbon and more; Supports computer systems including Win XP/Win 7/Vista/Win 8 (32/64bit) and above.
eBay
Type C to HDMI Adapter USB C to HD-MI Converter HDTV 4K@30Hz USB 3.1 HDMI-compatible Cable For MacBook Chromebook Samsung Xiaomi
Aliexpress UK
Type:8 in 1 USB C Hub Multiport Adapter. 1 x 8 in 1 USB C Hub Multiport Adapter. Resolution: 4K UHD or full HD 1080p. Support TV/display screen resolution of 4K UHD (3840×2160) 30Hz, downward compatible with 1080P, 720P.
eBay
Type C to HDMI-compatible Cable USB Type C to HDMI Converter HD 4K USB 3.1 HDTV Cable Adapter for MacBook Laptops Samsung Xiaomi
Aliexpress UK
Give you clear and vivid 4K@30Hz high resolution, backward compatible with 2K@60hz, 1080P@120hz. User-friendly Strain Relief for smooth plug-unplug. Non-slip thumb grip, chill when plug this thunderbolt 3 to hdmi adapter.
eBay
7-in-1 USB C Docking Station 4K HDMI-compatible Adapter USB 3.0 HUB TYPE C to HDMI PD 87W USB C Splitter for Laptop Macbook Pro
Aliexpress UK