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Amazon.com: UGREEN USB to RS232 Adapter Serial Cable DB9 Male 9 Pin with PL2303 Chipset RS-232 Converter Cable for Windows 10 8.1 8 7 XP Vista, Mac OS, Linux, 3FT : Electronics
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Apple Planning Switch to Randomized Serial Numbers for Future Products Starting in 'Early 2021' - MacRumors
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