The 6MB/C-878/U40-S5 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 852 to 904 MHz, Bandwidth 52 MHz (1dB), Center Frequency 878 MHz, Insertion Loss 2.9 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 6MB/C-878/U40-S5 can be seen below.