The 3680-1600 from Holland Shielding Systems is a Microwave Absorber with Absorption 14 to 50 dB, Frequency 30 MHz to 100 GHz, Power 6 kW, Thickness 62.99 Inch/1600 mm, Thickness 62.99 Inch. Tags: Pyramid, EMC Absorber, Power Absorber. More details for 3680-1600 can be seen below.