This LOT is one RF Bay, Inc. New 50-4000MHz +20dBm Output Medium Power RF Amplifier, Model Number: MGA-4-27 with SMA Female Connector.
Detail Spec on Web as follows. This item is in the category "Business & Industrial\Test, Measurement & Inspection\Signal Sources & Conditioning\RF & Microwave Amplifiers".The seller is "rfextra" and is located in this country: US. This item can be shipped worldwide.