I have a Janome Mc 9900 sewing/embroidery machine and it uses USB to transfer files. The flash drive must be smaller than 4 MB. It meets all requirements. It's so cool to upload and convert files so you can easily add or remove files. With five flash drives, the memory lasts a long time.
Kingston DataTraveler flash drive 100 G3 256 GB, 1 pc. black
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2 TB External HDD ADATA DashDrive Durable HD650, USB 3.2 Gen 1, Blue
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2 TB External HDD Western Digital WD Elements Portable (WDBU), USB 3.0, black
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