The T8-1-X65+ from Mini Circuits is a Balun with Frequency 0.15 to 250 MHz, Insertion Loss 0.61 to 2.55 dB, Current 30 mA, Power 0.25 W, Return Loss 3.14 to 18.72 dB. Tags: Plug In, Unbalanced to Unbalanced. More details for T8-1-X65+ can be seen below.