The TMO-2-1+ from Mini Circuits is a Balun with Frequency 0.050 to 600 MHz, Insertion Loss 0.15 to 2.50 dB, Current 30 mA, Power 0.25 W, Return Loss 5.65 to 23.09 dB. Tags: Plug In, Unbalanced to Unbalanced. More details for TMO-2-1+ can be seen below.