The HDRF-20U19-A4 from RF Electronics is a RF Shielded Test Enclosure with Frequency 20 MHz to 12 GHz, Isolation/Insulation 90 to 130 dB, Interior Depth 19.92 Inches, Interior Height 32.4 Inches, Interior Width 14.72 Inches. Tags: Rackmount, Rack Mount Shield Box. More details for HDRF-20U19-A4 can be seen below.