The 4MB/E-10/U4-14 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 7.83 to 12.17 MHz, Bandwidth 4.34 MHz (1dB), Center Frequency 10 MHz, Insertion Loss 0.4 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 4MB/E-10/U4-14 can be seen below.