Fangrui Product Details Features: 1.4ghz Second Generation Vector Network Analyzer. V2 Plus4 Is The New Hardware Version. 2.4 Inches Display; 4ghz Frequency Range 3. Scanning Speed Increased By 4 Times (400 Points/second); Up To 90db Dynamic Range (1ghz) 4. Up To 80db Dynamic Range (3ghz) 5.1024 Points Scan (-qt Software) Description. 1.measurement Frequency Range: 50khz - 4ghz 2. System Dynamic Range: 70db (to 3ghz, After Calibration, Without Averaging) 3. System Dynamic Range: 80db (to 3ghz, After Calibration, 5x Averaging) 4. System Dynamic Range: 90db (to 1ghz, After Calibration, 20x Averaging) 5.s11 Noise Floor (after Calibration): -50db (to 1.5ghz); -40db (to 3ghz) 6. Scan Rate: 400 Points/second (f 140 Mhz), 200 Points/second (f Less Than 140 Mhz) 7. Number Of Scanning Points: Adjustable, Maximum 1024 Points (maximum 201 Points On The Device Screen) 8.power Supply: Usb 9. Rf Port: Sma (not Rp-sma!) 10.usb Interface: Usb Type-b 11.display Screen: 4-inch Tft (480 X 320) 12.battery: With 3200mah Lithium Battery 13.port 2