# HD and UHD Link devices
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There are two versions of the Link device. Each device can handle different usages, ingest different resolutions, and stream different formats.



- **AWS Elemental Link HD (Link HD)**
  - **Usage:** Connect to a MediaLive input
  - **Resolutions that the device is ingesting:** HD or lower
  - **Resolutions and codecs that the device produces:** The same resolution as the ingest, in HEVC 

- **AWS Elemental Link UHD (Link UHD)**
  - **Usage:** Connect to a MediaLive input / **Resolutions that the device is ingesting:** UHD or lower / **Resolutions and codecs that the device produces:** The same resolution as the ingest, in HEVC 
  - **Usage:** Connect to a MediaConnect flow / **Resolutions that the device is ingesting:** UHD or lower / **Resolutions and codecs that the device produces:** The same resolution as the ingest, in AVC or HEVC