Hotway 3.5” 4-bays SATA Raid HDD Rack for USB3.0+e-SATA (HFR2-SU3S2)

Sleeping mode in synchronization with PC's power
One button for RAID mode control
Support HDD Hot-Swappable
Smart Fan functions
Multi-function LED displays
External power supply

10 Times Faster
The full-duplex data transfers capability allows the sending and receiving of data (at the same time) at 10 times faster than an equivalent card of USB 2.0 Standard. The maximum speed of USB 3.0 is 5Gbps, which enables the data transfer up to 25GB within a minute.

FORCED CONVECTION PROCESS
Known for it's exceptional properties for being lightweight, high rigidity and superior heat dissipation capabilities, Aluminum is an obvious choice when it comes to constructing a quality hard drive enclosure, especially with the excess heat generated from the high-speed hard drives available in the market.

SMART FAN
Comes with auto / manual modes & 3 levels of
speed for best convention.

Spanning Mode
Spanning concatenates multiple hard drives as a single large volume;resulting in a seamless expansion of virtual volumes beyond the physical limitations of singularly connected hard drives

Striping Mode
Striping is a method of concatenating multiple hard drives into one logical storage unit. It is the automated
process of writing data across multiple drives simultaneously. Striping is used to increase the performance of disk reads. The multiple hard drives will write data in “column” effect. If one drive in a striped set fails, all of the data in the stripe set is lost.

Mirroring Mode
Mirroring is the automated process of writing data to multiple drives simultaneously. Mirroring is used to provide redundancy.
If one drive fails, the redundant drive(s) will continue to store the data and provide access to it. The failed drive can then be
replaced and the drive set
can be re-mirrored.

Striped set with dedicated parity
This mechanism provides an improved performance and fault tolerance similar to RAID 5 but with a dedicated parity disk rather than rotated parity stripes. The single parity disk is a bottle-neck for writing since every write requires updating the parity data. One minor benefit is the dedicated parity disk allows the parity drive to fail and operation will continue without parity or performance penalty.

RAID O - Spanning Mode Striped set with distributed parity
Distributed parity requires all drives but one to be present to operate; drive failure requires replacement, but the array is not destroyed by a single drive failure. Upon drive failure, any subsequent reads can be calculated from the distributed parity such that the drive failure is masked from the end user. The array will have data loss in the event of a second drive failure and is vulnerable until the data that was on the failed drive
is rebuilt onto a replacement drive.

RAID 1 + 0
RAID 1+0 is mirrored(Raid 1) sets in a striped(Raid 0) set .