MARSHAL has added a new 2-bay external HDD enclosure to its product page, the MAL352U3R. Measuring W135mm x D225mm x H121.5mm and weighing 1.6kg, the enclosure is equipped with a USB 3.0 interface, RAID (0,1) support, a built-in 70mm cooling fan at the back and can house a total of two 3.5-inch SATA HDDs. The MAL352U3R will hit the market from late November for 6,980 Yen (about $70).
Google translation:
This product is more than one HDD Enclosure equipped with RAID functionality. Key features include high-speed writing the data distributed to more than one HDD. Function to enhance the safety and save at the same time in the HDD of the two the same data is equipped. Combine mode (multiple recognition) are also mounted tower Standard mode (individual recognition) for any RAID mode other than.
I am capable of high-speed interface USB3.0. Photo data and video have taken the time to transfer data up to now can be transferred at high speed. I will forward at a speed of 2-4 times that of USB2.0.
Available as usual even USB2.0. In addition, I will not require automatic recognition driver.
※ If you want to connect with USB3.0, cable and IF that is compliant with USB3.0 
Is required.
※ If you want to connect with USB2.0, maximum transfer rate is 480Mbps and (theoretical value).
※ For the transfer rate, I will depend on the power of the hard disk.
Is possible to use two SATA3.5HDD4TB, you can 8TB minutes available in total.
※ OS you are using is compatible with the GUID partition (GPT) To create volumes larger than 2TB There is a need.
Putting in and out of the SATA3.5HDD is possible and out easy tool-free. In addition, because it can be fixed by a jig that comes with a dedicated tray also fixed HDD, available in Nejiresu.
※ If you use 2.5-inch HDD / SSD, you will need to be fixed with screws provided.
If you turn OFF the TV power and the PC, Because it is equipped with the rotation of the HDD immediately stop "PC power interlock function", will ensure that you do not use unnecessary power.
※ I can not cut the main power supply of HDD case.
Insertion and removal of the HDD is possible even while turning off the power of this product.
