Totally agree with the comment of Frederick. It allows full use of the USB3 ports, but it can become burning on a simple speed test (CrystalDiskMark) ... to touch, I would say + 40 ° C easy ... The design is good, but given its width can make it unusable USB port next if too close ... and unfortunately it is often the case on laptops. Otherwise, during the first use, it took me a little stress to insert it into my USB3 ports. The case of the fit is very tight but fortunately it's solid (metal).
