The TTMO-1-1+ from Mini Circuits is a Balun with Frequency 0.005 to 100 MHz, Insertion Loss 0.10 to 2.20 dB, Current 30 mA, Power 0.25 W, Return Loss 2.65 to 35.59 dB. Tags: Plug In, Unbalanced to Balanced. More details for TTMO-1-1+ can be seen below.