ITEM NAME:200mW DC 4.0GHz RF Fixed Attenuator SMA Double Female Head 0dB 10dB 20dB 30 K3K4 200mW DC 4.0GHz RF Fixed Attenuator SMA Double Female Head 0dB 10dB 20dB 30 K3K4 Frequency range: DC - 4.0GHz Maximum power: 23dBm (200mW) Standing wave ratio: Less than equal 1.20 System impedance: 50Ohm RF interface: SMA double female head (Outer screw inner hole) Attenuation: Direct: 0dB (reference) Level 1:10 +/- 0.8 dB Level 2: 20 +/- 1.1 dB Level 3: 30 +/- 1.5dB Color: picture color Material: PC + metal Package Contents: 1 x DC-4.0GHz RF Fixed Attenuator Only the above package content, other products are not included. Note: Light shooting 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.