Magnetized on one side only (eliminates stray magnetic fields)
Prevents re-circulation of hot air between top-mount fans and nearby vent openings
Accommodates variety of rack enclosures - select appropriate rack depth
When using exhaust fans, the VBK Series magnetized Vent Blockers promote active thermal management. Vent Blockers should be placed over the enclosure's vents located on the upper front of the enclosure, upper sides, and upper rear door (depending on enclosure). This will ensure that heated enclosure air will be forced out through the top-mounted exhaust fans instead of re-circulating, keeping equipment cool.