This is a UL (Underwriters Laboratories) flammability rating. It indicates that the plastic material of the PCB will extinguish itself within 10 seconds if ignited and won't drip flaming particles. It is the industry standard for safe consumer electronics.
If you are looking at a board with this label, it isn't a unique model number, but rather a set of manufacturing certifications: cm-4 94v-0 schematics
The most interesting feature of the "CM-4 94V-0" search is the This is a UL (Underwriters Laboratories) flammability rating
: These often use HannStar PCBs marked as "MV-4 94V-0." The full schematic post for this series includes roughly 38 pages covering the system block, processor, and power supply (VCORE, VDD3, VDD5). Hannstar MG101G1A If you are looking at a board with
to find the correct schematic. Common devices with this labeling include:
If the models above do not match your device, look for these specific identifiers on your board: Mainboard Code