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Tests show Thunderbolt ports on M1 Macs don't fully support USB 3.1 Gen 2 speeds: Digital Photography Review
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HyperDrive USB C Hub 8-in-2 Sanho MacBook Pro Hub with HDMI Mini Displayport Thunderbolt 3 USB-C 3.0 Power Delivery SD/Micro SD Card Reader Usb C Dongle for MacBook Pro 2020 2019 Gray :
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