SATA to USB 3.0 Dual Bay Hard Drive Dock for 2.5"/3.5" SATA HDD SSD with Micro SD Card Reader 2 USB 3.0 Port, Offline Clone Function External Hard Drive Docking Station, 2X20TB and UASP Support

I'm NOT getting paid for this review and am referring to the model UASP DS02 Sata 3, 16TB HD support with TF/SD slots, 2x USB 3 slots and 2x 2.5inch/3.5 inch slots. Ordered on 10/2020. DO NOT BUY refurbished or used older models. Get the latest new version to BE on the SAFE side! I have several older clone/sata external drive enclosures that have served me well for years. I needed something to do more, be muich faster and after thorough research, I took a chance on this one. NO REGRETS!!! This unit does everything I need to do. YES - You can use two hard drives at the same time and they will each have their own drive assigned letter. You can transfer ANY files from the computer to any of the two drives with ease. The 2.5 inch drive slips right into the slot easily and it has a spring loaded cover for the larger 3.5 inch drives. It makes the unit look really nice and helps keep the dust out. The POWER supply is 3 Amps and I'm using it to handle 1 USB 3 memory stick with 2 Sata 3.5 inch drives and a TF card at the same time!!! You can also easily transfer ANY files from the two hard drives to the USB stick and vice versa with one click. However, YOU CAN'T transfer a file to the TF\SD card unless you take out the USB stick. Once the USB stick is removed, you then have full access to the TF\SD card. This puppy is very fast, however, a few times a file seems to transfer slow. Hard drive to hard drive all files are super fast, but on very few rare occasions a hard drive to USB 3 transfer seems to slow down. I copy most movies which are 2 GB a piece and its super fast, just know that making multiple copies onto ANY USB drive will be severely slow down big time due to its design. Any multiple copies on a USB stick whatever the version will all come to a crawl. If you simply copy one file at a time, it will be like warp speed. I am using this to backup my movies and games onto a 4TB 3.5 inch drive and to USB 3 memory stick and again, its lightning fast. The TF/SD card slots are just a bonus and like icing on the cake makes this an ultimate unit. The power supply has 3 amps and more than enough juice to run everything. I have not tested "OLDER" drives that may require more power but in that case, use a heavier amperage power supply. It also comes with a beefy thick USB 3.0 cord that seems to be 3 foot long that attaches to your computer. It comes with a nice manual, small footprint but still readable and very informative with colored diagrams and troubleshooting. 1 Year warranty. I had two 4TB hard drives and a USB stick powered up for many hours and the hard drives are lightly warm. They never get hot and this unit has enough clearance to keep those drives cool. It says that everything is "HOT SWAPPABLE." Thats true and it is but honestly that is a FOOLS way of working with this. BE SMART - DO IT RIGHT - ALWAYS use the dismount the drives FIRST, then shut the unit off with the easy click on/off button on the back TO SAVE PROPERLY and not have ANY chances of corrupting your files or DAMAGINGING

The docking station works well - the quality of the product is good. I am satisfied it will meet my expectations.

I had a lot of personal projects to upsize (or downsize) some hard drives for PCs, DVRs, etc. I have had a few of those little adapter boxes which let you attach an IDE, mini IDE or SATA drive to a USB cable. Those were okay with 2.5" SATA drives. But whenever you needed to power a 3.5 IDE or SATA drive, you had to find the wall wart and the 4-pin molex plug or a 4 pin header to pass-thru to the male SATA power plug. Not to mention the precarious nature of having your hard drive on your desk, ready to be flung off or damaged.For all of these hard drive projects, I wanted to get a SATA drive "docking station," so that I could leave it plugged into a USB3 hub full-time and pop 3.5" or 2.5" drives into it easily. I have now had this device for over a week and it has performed flawlessly.There is a built-in drive cloning feature, which I have not yet used. On my Tablo 4-Tuner over-the-air DVR, I originally purchased a Seagate 5TB external drive. But with my current viewing habits (and other services), I found that I was not even sustaining 1TB in hard drive space (at nearly the highest compression quality). And there are times when I could have really used that 5TB drive for other things. So, I waited until a 2TB Seagate Barracuda 2.5" drive was pretty cheap and bought this HDD docking station. Because the older 5TB drive is an external drive, it is housed in a plastic case and I cannot insert the 3.5 drive into the docking station. But I am able to connect it to another USB3.0 port on my PC. Even if the drive was bare and I could place it into one of the two slots, it is LARGER than the destination drive and the cloning features requires that the destination drive be identical or larger than the source drive.I used a boot image of gParted to shrink the ext4 partition on the 5TB drive so that I could use regular drive cloning software to simply copy the partition from the 5TB drive onto the brand new 2TB drive in the ikuai docking station. Then, I boot into gParted once again to extend the partition to the maximum size the new drive can handle. Now it is ready to be installed inside of the Tablo Quad DVR (this model has an internal 2.5" hard drive bay. And I can now reformat the 5TB drive as NTFS for backups or whatever I need.I could have done this with my old SATA adapter, but the dock from ikuai really makes dealing with several drives quick and easy. No regrets in this purchase.

This Item works well. Once the drive is connected, it stays connected. The problem I have is that when it is powered up and you insert a drive, the drive is not accessible until you power cycle the dock. When you insert a SIM, it reads it and pops up for you to be able to access the files, but drives do not do this right away.

I wanted to love it. Small size, can connect two 2.5 SSDs or 3.5 HDs, plus a USB hub and SD card reader. Unfortunately, it has disconnected on its own from my Mac Studio M4 Max several times, both when actively transfering files and while idle. It immediately reconnects but I get the message disk not ejected properly and the file transfer fails. Strangely, another separate external SSD on another one of my Mac's ports disconnects too when this occurs, and one time that storage volume got corrupted and had to be reformatted. I don't know what the problem is, but I didn't have any such issues until I connected this product, so I'll have to return and try another product.