FKN Systek | http://fknsystek.com/PCB%20Racks.htm
. Card guides are tapered at the front end for easy PCB insertion. Runner spacing is .39" (10mm) with a depth of 0.079" (2mm). Capacity: 30 PCBs 6.7" (170mm) long. Specifications: Size: 13.9"H X 11.7" X 6.7"D (354 X 297 X 170mm) Weight : 2.5 Lbs Surface Resistance
40731 | https://www.smta.org/harsh/Harsh-Environments-Conference-Program-2020.pdf
Surface Mount Technology Association (SMTA)