AXE Superb 512GB USB 3.1 SuperSpeed Flash Drive, Metal Casing, Optimal Read Speeds Up to 400 MB/s. Write Speeds Up to 300 MB/s

Was a bit weary ordering this initially but it seems to be a solid Phison design that companies attach their branding to. The drive identifies as Phison PU31 and inside it there is a Phison E13T DRAM-less NVMe with Toshiba 96L BiCS4 TLC NAND attached to a PCIe/NVMe to USB 3.1 gen 2 bridge (JMS583).The packaging is fairly simple and it comes with 2 cables, one Type C to Type C cable and one Type A to Type C, so you have all of your bases covered. From what I've tried, unlike what other reviews have stated, the Type A to Type C cable is capable of pushing the drive to USB 3.1 gen 2 speeds (around 900/850 in my case), maybe there was a small revision somewhere along the way.Speeds are as you'd expect, they vary depending on the port you attach it to, on a good USB 10Gbps (USB 3.1 gen 2) port it will reach 1000/1000 MB/s reads/writes and about 450/450 on a USB 5Gbps port (USB 3.0). Weirdly enough I got the best results using the Type-C port on an RTX 2060 FE GPU, the USB 3.1 gen 2 ports on my motherboard were only reaching 900/850 MB/s. So it's only going to be as fast as the device/port you attach it to, but even on a basic USB 3.0 port it's going to be fast enough to fill its capacity quickly.Now, the main issue is that the drive is branded as 512GB and even the internal marking on the NVMe SSD is 512GB, but it shows up as only 480GB usable (447GB formatted). I figure the missing 32GB is extra overprovisioning to speed up the drive and make it last longer, but the branding and advertising should reflect that. Took a star off for that, otherwise it would be a 5/5.If I am to nitpick, I'd also point to the drive going to sleep after about 10 minutes of idle time as another issue, but otherwise it seems to wake up from standby instantly when accessed again. Only reason I'm pointing this as a negative is that it might cause issues with some programs/games.The Phison E13T drive inside is quite decent on its own, standalone seems to be able to hit around 2500/1700 MB/s sequential reads/writes and holds write speeds pretty well for a DRAM-less drive, seem to only rarely go down to ~200 MB/s during long write sessions once the SLC cache is exhausted and it's close to being full. It's more than capable as a game drive or any kind of other file storage.Thermal wise, I haven't really encountered any issues with thermal throttling when the drive is in the enclosure or otherwise when standalone in a poorly ventilated PC case.Attached pictures with the internals, the NVMe inside can be shucked and the enclosure can be reused for other NVMe drives, quite a good buy if you wanted a fast external drive that you can shuck or upgrade later on. Was pleasantly surprised to find a big thermal pad on the NVMe that contacts the metallic housing to help spread and dissipate some of the heat (the drive does get a bit hot while in use).Overall this AXE 480GB SSD is a pretty fantastic external drive.

I was attracted to the AXE Speedy 512GB USB 3.1 by the claimed write speeds of up to 300 MB/s. I can only get near to the top write speed for a couple of seconds before the write speed significantly drops to a very inconsistent 20 to 90 MB/s. I suspect (but I may be wrong) that the higher advertised speed is only being achieved by using a small amount of high-speed cache memory first, before data is flushed to much slower storage memory, which may explain why it quickly drops on every write test I have tried with larger files of 4GB+. I understand the speedy description and quoted write speed are misleading therefore I cannot recommend it.

The transfer rate at the start is quick. But it gets very hot and the data transfer rate drops like a stone and then just starts and stops, presumably to allow cooling before transfer restarts.

Write speed starts off promising, peaking at 250+ but soon drops down to 20, back up to 90, back down to 20 and so it goes to the end. So the transfer profile in W10 looks like a saw-tooth.Read speeds are fine and reach around 395.If write speeds are important to you then don't bother with this one.

I have a AXE compact SSD with USB, An AXE speedy 512GB stick and an AXE superb 256GB stick.Attached benchmarks for each.Purchased at half price during the prime day sale - no doubt will be reduced prices in the next sales...The SSD is the best as it also provides much better random read and write speeds - normally a weak point.All offer excellent and similar read and write sequential speeds otherwise.Differences between speedy and superb are small - price can be the deciding factor.

My brand new LG smart tv could not use this storage device. When I looked at the features of the device I found it was showing an old operating system. I used it for something else rather than send it back and got another one elsewhere which worked perfectly.

I purchased this product after seeing the claim that it has 'Read Speeds Up to 400 MB/s. Write Speeds Up to 200 MB/s'. I know it says 'Up to' so I shouldn't expect the speeds to be exactly those numbers when using it BUT I found speeds to be nowhere near the claimed speeds. The highest speed I got on a 2GB transfer was 50mbps write and 40mbps read, I mean seriously I don't have words for my disappointment AND I would politely demand a REFUND as the product has false claims and the product I received is nowhere near the transfer speeds mentioned in the product description.

Good size - 64GB. Tick. That's about it.For a supposed USB3.1 device this has got a bad controller.This shifts data onto itself at an OK-ish speed ( 150MB/s) but only for the first 300-400 MB.Then it trickles to 25-30MB/s for the rest. No good if you are regularly transferring large amounts of data.It's painful. I've got a bad tooth at the moment and that's less painful than waiting for this to fill.I have other 3.1 devices that maintain 300 MB/S for the duration of transfer using the same USB port that this is pushed into.Don't buy.