This Radio Amplifier Board for RA30H4047M RA60H4047M ectmitsubishi's product. And also support some produce of . It is an upgraded version, increasing the input of SMA , power indicator light and Transmit lights . Input:1-5W Output:10-70W (depending on the module) Input voltage:DC 10-13.8V Frequency:130Mhz-l70Mhz 400Mhz-470Mhz (depending on the module) Note: there is a Plug-resistor not weldled, if you use M or S series amplifier module ,yau should the plug-resistor R6. if you RA series amplifier module, you should seld the plug resistor. Colour:As Shown Material:PC+Metal Size:92x64x1.6MM Package Contents: 1 * 70W Radio RF Power Amplifier Board Only the above package content, other products are not included. Note: Light reflection 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.