1.This is a double-balanced radio frequency mixer: of RFin=1.5--4.5GHz, RFout=DC--1.5GHz, LO=312. 2.It has both its inputs applied to differential circuits: so that neither of the input signals and only the product signal appears at the output. 3.Double balanced mixers: are more complex and require higher levels than unbalanced and single balanced . 4.This mixer has good isolation: at RF and IF ends relative to LO end, so it does not demand more about IF filter. 5.Standard SMA female connectors :are suitable for connecting most devices. Compact design, easy to install. Noise Factor: 0.6dB LO/RF Isolation: 40dB Frequency Conversion Loss: 8.5dB 1dB Compression Point: 10dbm RF/IF Max. Input Power: 13DBM LO Max. Input Power: 27DBM colour: green Material: PCB Size: 100x80MM Package Contents: 1 x Frequency Mixer Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.