The HDRF-4U19 from RF Electronics is a RF Shielded Test Enclosure with Frequency 20 MHz to 12 GHz, Isolation/Insulation 90 to 130 dB, Interior Depth 18.6 Inches, Interior Height 4.5 Inches, Interior Width 15 Inches. Tags: Rackmount. More details for HDRF-4U19 can be seen below.