The RT-2121 from Roottek is a RF Shielded Test Enclosure with Frequency 100 MHz to 6 GHz, Isolation/Insulation 70 to 80 dB, Interior Depth 19.6 Inches, Interior Height 21.18 Inches, Interior Width 18.38 Inches. Tags: Benchtop. More details for RT-2121 can be seen below.