Pros: - Passes f3 ("Fight Flash Fraud") check: it really is 64GB (58.59 GB usable space to be precise). - Also successfully read back via USB-A files written via USB-C to confirm the drive works as expected. - Write speed is 42 MB/s via USB-C or 31 MB/s via USB-A, not great, but not terrible and significantly faster than other cheap flash drives I've seen. - *Via USB-C*, read speed is 109 MB/s.

Cons: - *Via USB-A*, read speed is only 38 MB/s, nowhere near the advertised "up to 100 MB/s", even though it's plugged in a USB 3.0 USB-A port and other cheap flash drives read at 100 MB/s over the same port just fine. Investigating further, looking at the dmesg logs, the drive is identified as "high-speed" (aka USB 2.0, theoretical max of 53 MB/s so a measured speed of 38 MB/s makes sense) when plugged in via USB-A (even though it has the USB 3 blue color-coding on its USB-A port) but as "SuperSpeed" (which corresponds to the "USB 3.2 Gen 1" listed in the specs) when plugged in via USB-C, while other USB-A only flash drives I just tried show up as SuperSpeed when plugged into the same port.

Overall Review: The dual-A+C design is cool and useful for devices without USB-A ports like smartphones or small/newer laptops. Performance is actually surprisingly good for a cheap drive. The limitation to USB2 speeds on the USB-A port means this is probably best thought of as a USB-C flash drive with a backup USB-A port in case you encounter a device that hasn't caught up to your dreams of an all-USB-C future more than as a flash drive with a bonus USB-C port.

Pros: - It works, even through phone case with some cards in it.

Cons: - Took off one egg because as far as I can tell, there's now way to turn off the light, which makes it awkward to use as a bed-side charger. Since it's a full ring around, it wouldn't be easy to just put tape over it.

Overall Review: Does what's it's supposed to. Got it to extend the life of a phone that has a charging port that cables don't stay in very well, and it seems to be working for that.

Pros: - Cheap - Capacity is as advertised. Checked using the "f3" tool to confirm they really can hold 64GB (well 62.0 GB/57.8 GiB, but some overhead is expected in flash capacity) of data.

Cons: - 1 of the 5 pack did not work at all. I ran f3write/f3read twice, both times getting errors about the data read back being corrupted... and then after that it wouldn't even mount the filesystem. UPDATE: Contacted customer support and they agreed to refund 1/5th of the price, so I didn't have to return all 5 drives. Still leaving an egg off for the QA issue, but at least it failed immediately. - Slow, as expected for such a cheap drive: the advertised read speed is accurate, but the write speed isn't advertised because it's only ~9-10 MB/s, meaning writing an entire 64GB flash drive takes about 2 hours. Probably not worth the extra couple dollars to go up from 32GB capacity unless you're really patient.

Overall Review: - What I expected from a flash drive cheap enough to not care if I give it away and never see it again.