Extron is shipping the FOXBOX HDMI fiber optic transmitter and receiver
set for long haul transmission of HDCP-compliant HDMI video, audio and
RS-232 control signals over fiber optic cabling. The fiber optic
transmitter and receiver use Extron-exclusive all digital technology to
deliver performance with signals up to 1920×1200, including HDTV
1080p/60. Available in multimode and singlemode models, FOXBOX HDMI
products include Key Minder, EDID Minder, Auto Input Memory, RS-232
control from multiple locations, internal test patterns and real-time
system monitoring. EDID Minder manages EDID communication and Key Minder
supports continuous authentication of HDCP compliance, for enhanced and
simplified integration. Compact, low profile enclosures allow for
discreet installation such as behind a flat-panel display.

FOXBOX HDMI transmitters and receivers can be used in combination with
FOX Series matrix switchers to create HDCP compliant signal distribution
systems up to 1000×1000 and larger, supporting enterprise installations
with fast and reliable switching. In addition, they are compatible with
FOX Series VGA and DVI extenders when transmitting non-HDCP content.
Units can be paired with FOX Series VGA transmitters and receivers for
easy conversion between RGB and HDMI in AV systems that include a
variety of analog and digital displays and sources.

Go here for all the specs: http://www.extron.com/company/article.aspx?id=foxhdmiad