Of the various 3.5 inch cases I've tested, I prefer this one. achieves very high speeds on a USB3.1 Gen-1 (USB3.0) or Gen-2 port. The case is made of aluminum (excellent for heat dissipation) and comes with a quality cable (very long enough). Easy to assemble and very permanent. And it has a power switch, unlike some commercial devices. Pop in a Western Digital NAS or black drive and you're good to go! And he still looks nice. I have a WD 6TB 5400rpm NAS drive in one and a WD Black 2TB 7200rpm drive in the other. The USB 3.1 port and performance are great. You won't experience anywhere near 10Gb/s transfer speeds with a hard drive (or even an SSD), but the speed is still impressive. ss This device does not contain a fan, so an external fan is required to stream or transfer large amounts of data simultaneously. If the device gets warm, blow it out with air. Aluminum serves its purpose. Fanless is a decision WE make. Hard drives get hot; body is not to blame! Sometimes life can be so unfair, but strength will prevail! I use a 6" shelf fan with all my external drives. It doesn't take long to cool them down. Like your CPU, the aluminum heatsink attracts heat and the fan blows it away. A slight fan noise can be heard both internally and externally. A low fan setting usually works well. The drive or Windows Explorer doesn't see it. This enclosure also does not restrict the DLNA/DRM media of today's prepackaged external USB drives and NAS drives. REVIEWS: I've read all the negative reviews of Revain and most or all seem to refer to a different case than this one. It doesn't have an eSATA connector; It's not plastic; YES, it heats up (as it should) when the hard drive heats up; You must initialize a new drive no matter where you install it; Has NO fan; Should work with any SATA II/III drive; Transfers much, MUCH faster than 23MB/s; etc. One reviewer even expected the device to arrive with a built-in hard drive. Another says the drive won't spin if no USB cable is connected. Maybe drives freeze when not in use, but I can't understand why anyone would want to start a drive when it's not connected to anything? !?You want it to work on systems other than Windows or Mac OS. Do your homework before ordering any computer product.>>> This is a VERY good device! I recommend it to my customers. I create computer and network systems for homes and small businesses. EXPLANATION: The tray that holds the (bottom) of the hard drive is made of plastic, but the metal top of the hard drive faces the aluminum case, which helps dissipate the heat.
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