The "CM-4 94V-0" label on a circuit board typically identifies its UL flammability rating and general manufacturing standard
Item description from the seller. Lenovo CM-4 94V-0 E162264 Motherboard. Condition is Used. Shipped with USPS Ground Advantage. What Is a 94V-0 PCB Board? A Beginner's Guide for 2025 cm-4 94v-0 schematics
The most important revelation in this search is that The "CM-4 94V-0" label on a circuit board