Tiffen 58mm Low Light Linear Polarizer Filter NAS Accessories you might consider marking them

you might consider marking them (there is a blank square on the bottom silkscreen you can use for this)

Thermostatic Fan Control

Detachable Cable

2" deep fully-enclosed drawer that can be installed in a 4U rack space

GND (RTS is the green cable and GND is black)

Tiffen 58mm Low Light Linear Polarizer Filter NAS Accessories you might consider marking themHelps to Eliminate Reflections and Glare Reduces Haze and Blue Cast in Landscapes Greater Color and Tonal Saturation Low Light Design Ideal for Indoor Use Rotating Filter Mount ColorCore Technology The Tiffen 58mm Low Light Linear Polarizer Filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non metallic surface. This results in a noticeable increase in the saturation of skies and