Pros: Reasonable price/quality.

Cons: No temp sensors. Get a program that can monitor and turn off the external drives if they get too hot.

Overall Review: Mfr is Chyangfun. Sans Digital sells same boxes with (better?) PS and fan.

Pros: Simple to add drives to system.

Cons: I have a 1TB drive in the box and it runs at 39C even though it is not being used (empty drive). Second drive space is not yet used. It is a bit warm, IMO, due to a slow fan. I have a comparable drive (same make/model/age) in a 4-bay RAID box with two drives (1TB and 4TB) spaced at the #2 and #4 slots. There is a Vornado 133 external fan blowing air through the open door of the RAID box at both drives. Those drives are both 30C - 32C with the Vornado running. Absent the external fan, these two drives run at comparable temperatures (38C for the upper 4TB and 40C- 42C for the lower 1TB). Orico warranty in the US is 30 days. Not my opinion: "We guarantee all of our products against quality defects within the defined period (eg, 30 Days for US buyers, for specific warranty period please refer to related local laws)" http://orico.cc/faq.php?id=43 So, no more Orico for me. I can't afford 30-day warranties.

Overall Review: I use 4TB drives to back stuff up. Can't say if a pair of larger drives would work at full capacity or not. I do not see a reason why they would not work. I am unaware of any hardware or software limitation in the box that would restrict drives to 4TB, but it is a risk that is not unreasonable.

Pros: Not hard to set up or use.

Cons: Needs external fan blowing on box to keep it cool.

Overall Review: Have 3 of these, drives M, N. and P. Went to bed with all three working. Finished Nov 2020 Windows Update and no drive M. Power button works properly. Drives N and P were fine and connected to same USB hub. N and P still seen, M not seen. Removed drive M from box. The drive itself is fine. Put drive back in box. Tested it again. Not seen. The box died overnight.

Pros: Popped it into a RAID/JBOD box and it was correctly seen. Partitioned and formatted the drive with no problems. Has been running for a few days with no problems, at sub-90F (31C - 32C) temp. Comes with 3-yr warranty (vs 2-yr for Seagate/WD). Quiet drive.

Cons: Costs $15-$25 more than Seagate or WD.

Overall Review: Recommended. This is the third HGST purchased by me over the last 3-4 years. All are still running fine.

Pros: Seems like it should be a decent drive at a reasonable price. It is seen correctly using a Seagate GoFlex USB 3.0 connector. It took a while to figure out, but I was finally able to get the drive seen as a full 4TB in the USB boxes. However, the path to get there was not easy to figure out. See the Cons below to see how I got it to work.

Cons: Drive is seen in 3 different USB devices (2 RAID boxes by different mfrs) and a single-drive USB 3.0 external drive box. Using the GoFlex, the drive was partitioned and formatted 4TB. Put the drive into ANY of the other devices and it is seen as two diffferent partitions (2TB "GPT Protected Partition" + 1.7TB (Unallocated Partition). Move the drive back to the GoFlex, reboot the computer, and it is seen as a valid drive, 4TB, one partition, with drive letter assigned. 4TB HGST drives do NOT have this issue and are seen as 4TB drives no matter where they are placed. Put HGST and this drive in the same box and the HGST is seen correctly while the Seagate is not seen until one looks in Disk Management--where it is shown as 2.2TB + 1.7TB, with all the options to do anything with the drive "greyed out"--choices are ONLINE, PROPERTIES, and HELP. After playing with the drive for some weeks, I decided to try some free drive partitioning software. A few of them were ineffective, and I finally tried Paragon Partition Manager (?) Free edition. Here is how I finally got it to work: 1. Leave the drive partitioned as 2TB first partition--and IGNORE whatever comes after. The first partition will likely be labeled as MBR--which is the problem. It gets fixed in a later step (#8, below). 2. Format the 2TB partition and assign it a new drive letter. 3. Verify the new drive letter is seen by your system as an empty 2TB partition. 4. If the drive is correctly seen as an empty 2TB, exit/close the drive partition software. 5. Open the Manage/Drive Management window and look for that drive. It should show that drive letter--with 2TB active partition and the rest unallocated. 6. Right-click on that active partition and DELETE it. 7. Right-click on the block to left of the now whole-drive unallocated partition. 8. It should show the option to Convert to GPT--click on it. 9. Assign it the same drive letter and it should be good to go as a single volume.

Overall Review: I will need to decide if it is worth keeping or returning. For the moment, it is an expensive doorstop. I thought it would work due to the HGST drives working properly. Might need to look at WD if Seagate keeps giving me problems. I think I figured it out, which took a while. New rating is 4 Eggs (from 2) because the warranty is only 2 yrs.

Pros: 4 drive capacity, multiple connection choices.

Cons: Can't use 4 drives. WAY too hot (drives get too hot to even touch). Way over 60C, so had to reduce to 2 drives in case--every other bay, so it is really a 2-drive box. I run these 24/7. I have two of these boxes. First one just died. Got up in the AM and it was dead (no lights, nothing). Moved the drives to the other box and all data is there.

Overall Review: Needs a fan with higher air flow to properly cool the drives.

I have three of them in use due to the failure of a 4-drive external box that had these three drives in them (running JBOD). One has a 5900rpm Seagate 4TB drive and the other two have HGST 7200rpm 4TB drives in them. The Seagate generally runs in the 26C-29C range while the HGST drives run in the 34C-39C range. The fan is fairly thin and I am not sure there is a higher-RPM fan I can get for the case. They run 24/7 and I have not experienced any problems with them thus far. My drive monitoring program sees the drives and the temps tend to go up/down with the room temp.