Mixed Signal Oscilloscope (MSO22) 2 Channel Series 2 Range - Tektronix SUP2-BW350T500-2, The Tektronix SUP2-BW350T500-2 MSO22 is an official firmware upgrade.
This will upgrade a 350MHz MSO-22 2-BW-350 to a 500MHz MSO-22 2-BW-500.
Tektronix SUP2-BW350T500-2 MSO22 Bandwidth Upgrade From 350MHz to 500MHz