This is the DISH Pro Plus Twin LNBF used with the DISH Network DISH 500 and the original DISH 1000 Satellite Dish Antenna  (dish sold separately)
This LNBF typically receives programming from the 110 & 119 satellites.
Requires DISH 500 Satellite Dish Antenna (sold separately) to be a complete ODU (outdoor unit)

Dish Network Part # 134336

This LNBF typically receives programming from the 110 & 119 satellites.

Requires DISH 500 or DISH 1000 Satellite Dish Antenna (sold separately)

This Dish Pro Plus Twin LNB is commonly used on the DISH 500 and on the original DISH 1000 satellite dish antennas.  It replaced the regular Dish Pro model.

Dish Pro Plus technology provides many features over the older Dish Pro technology including:

Ability to run one dual tuner off of one cable (splitter required)

Ability to send programming back out to other Televisions over the same cable (diplexers required)

The original DISH 1000 has since been replaced by the DISH 1000.2 which uses a different LNBF head altogether.