The TANGRAM ENCODER is a professional and high density HD/SD audio & video encoding device which adds the feature ofMPEG-4 and MPEG-2 encoding to the TANGRAM product line. With the same form factor as the TANGRAM modules, the TANGRAM ENCODER can be used in any TANGRAM base unit. The TANGRAM ENCODER allows you to add services available in HD/SD-SDI or A/V analog format to your digital network.