TERRAMASTER D6-320 External Hard Drive Enclosure - USB 3.2 Gen2 10Gbps Type-C HDD Storage Hot Swappable Plug and Play (Diskless)

Exactly what I needed... yes, it's shaped like a NAS.... but it's 1/2 the price while having the same design, I assume. This was replacing an external drive dock that I had which didn't reduce the noise of the two white label disks I had in them. This one doesn't make it fully soundproof but it is noticeably quieter... to the point where it doesn't make a loud annoying beep... but just turns on. No USB-3 B connector... a USB-C cable.... Performance is very good and while it's not 100% quiet, it's far better than the cheap unknown brand I had before. It fits and looks nice on a shelf.... and by default, the unit comes in Single configuration which has each disk as an independent disk... no RAID or JBOD (one logical disk with two disks....) In "single" mode, it worked how I wanted it with two separate mounts to where I could easily swap out 3.5" disks as needed (which I hopefully won't need)... but nice to have the option. So it's basically like a NAS that I would have bought but it's hooked into my Mac Mini M4 which is a far better NAS interface for what I want to do with it.

This is a really great drive enclosure for three reasons: design, reliability, and value. I really appreciated the tool-less design. I fully loaded the enclosure with 4 drives in probably less time then it would take to screw mounting plates onto a single drive for other enclosures or a PC case. This also means that drive replacements in the future will also be quick. Not as important, but the general appearance is also very nice--a very clean design. I have owned several external USB drive enclosures in single and dual bay capacities in the past, but most of them were not reliable. In the middle of long transfers, the USB connection would always drop and I would give up entirely. This led me to think that USB was too unreliable for large data transfers and external hard drives in general. I am currently using this drive enclosure for storing large data backups, merged with DrivePool with parity by snapraid. The size of an individual backup can exceed 3 TB and this enclosure has not failed me yet. The connection is reliable. Multiple drive bay enclosures can get quite expensive. That this one goes for less than the price of a large capacity NAS hard drive makes it very affordable and a good value. Would definitely buy again and would consider other drive enclosures from Terramaster in the future.

UPDATE (Still be aware of your drives' power draw): Terramaster sent me an upgraded power supply (90w vs 72w) to see if it would power up the EXOS drives more reliably. The larger power supply does handle the peak power draw on these drives better. My Kill-A-Watt measures peak power draw when all 4 drives are spinning up at just under 150w, which is too much for the included 72w power supply. Most drives are not going to need this much power, and the unit will work fine for most consumer drives, and most smaller capacity drives. Check the peak power draw in your drives' user manual. This is typically not the same as the numbers on the spec sheets, at least for EXOS drives. For example, the EXOS drives peak at around 35 watts during spin-up, while the spec sheets only discuss the running power at around 10 watts. If you have issues with your drives failing to spin up, contact Terramaster and request the 90w unit, or even better, contact them before you purchase and see if they can send you one to begin with. Other than this issue, the unit is great. It is quiet, easy to install the drives, and seems to just work. That, and the fact that TM volunteered (I didn't ask) to send out a larger power supply, is why I'm bumping this to 4 stars instead of 3. I have a feeling that this unit will just work for most people. INITIAL REVIEW: BEWARE: The unit does not have enough power to spin up 4 drives simultaneously, at least with the Seagate Exos drives I put in. You may need to pull a drive, let it spin up the 3 remaining drives, then insert the last drive hot. This is the only way I've been able to get it to work with 4 drives. Apparently some manufacturers spin up the drives in sequence, rather than simultaneously in order to avoid this problem. This is a HUGE problem for a device that advertises support for 4 drives. Requiring physical interaction like pulling a drive at every power up is problematic. I haven't yet tested whether this will affect the usage post power-up. If, for example, the drives spin down, will it even be able to spin them back up when data is being accessed? I've emailed customer support about this, and will update the review when / if I hear back.

En la mayoría de artículos este podría decir que se ajusta a muchas de mis necesidades, un adecuado precio y me sirvió como extensión de mi NAS, creando más habías para acoplar mas discos NAS y no tener que cambiar todo mi equipo. Con la conexión USB C logra buenas velocidades y al ser RAID da la posibilidad de acoplar de la mejor manera los discos. Creando un RAID para tenerlos como discos separados o discos unidos y visualizar una sola unidad (aunque con dicha configuración se pierden TB de almacenaje) Lo que me llamo la atención es que hace juego con mi NAS negro en lugar de desentonar el color con los clásicos blancos o grises

It is exactly as described in the description of product. No second thoughts on buying. Using it as partial RAID and simple storage for homelab. For mounting SSDs, screws are provided, this information is missed out in the product package contents. R/W Speeds match the described information.

Muy buen producto, agregando discos duros podemos tener bastante almacenamiento

Well I had 5 external hard drives hooked up to my server, I ran out of electrical outlets so I wanted something to change that. This was seamless, I shucked all the external drives and popped them in. Connected the USB-C and started up the server. All drives remained the same drive letter and I was back in business. I added some foam on the bottom as the hard drives have quite a bit of vibration when spinning (Enterprise drives) and this reduced the noise to nothing. Transfer speeds/read write are limited to what the drives can read/write and not what the controller/interface can handle. Overall great product, solved my needs, simple to setup, and I have a free bay for later expansion. The hot swappable feature is also very nice to have.

Easy to use. Fan is less noisy.