Marshall Electronics VSW-2000 4 x 1 3G/HD/SD-SDI Switcher

Burst Electronics DSR4X1 HD/SD SDI 4x1 Video Switcher w/RS232 RMT Control Option

Marshall Electronics HDMI SDI VSW-2200 SWITCHER RACKMOUNT

Burst Electronics VS8x1 Video Switch, New In Box NIB, w/ Keyboard Extension

Roland Edirol v1 Video Switcher

Extron SW4 3G HD-SDI Video Switcher 4x1 SDI Multi-Rate Tested