Armed with the manufacturer name, the BIOS code and version which appear when you first boot the machine (and in System Properties) should give you an exact match. AMD B450 Ultra Durable Motherboard with Realtek ® GbE LAN with cFosSpeed, PCIe Gen3 x4 M.2, RGB FUSION 2.0, Intel ® Dual Band 802. I can't find an up to date list in English, so you could try translating this page or just Googling the code and seeing which name comes up most often. This is a six character code beginning with a D which usually appears next to a symbol that looks like a circle with an arrow pointing through it. If there's no FCC label, you could start your component sleuthing by trying to figure out the manufacturer using its factory code. Turns out the component pictured is a WiFi adaptor from an old, abandoned motherboard. Examine the guide to find the four pins labeled 'SPK,' 'SPEAKER' or similar. Near the bank of pins, there should be a guide explaining the purpose of each section of pins. This should be printed onto the PCB itself or a white sticker that looks like the one above.You can check it at the updated FCC Site here. Look for a bank of pins on the motherboard, near the front of the PC case. This is the serial number assigned to components when they pass through testing at the Federal Communications Commission in the US.
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