The rear of the IcyDock MB454SPF-B unit has four SATA data connections, and either SATA I or SATA II hard drives can be used with the product. There are two power connector for all the drives.

All four hard drives power up when any one of the power plugs is populated. There is no indication as to whether just one power connection is sufficient, or if both are required. Naturally, each of the four SATA data connections must be connected with your own SATA cables to corresponding SATA headers on the motherboard. No SATA data cables are included with the MB454SPF-B product.

A small forest of jumper pin headers can be used for monitoring hard drive failure and access status with certain motherboards, but the majority of consumer systems will have absolutely no need for any of this.

The only other control you really may be interested in is the temperature alarm which can be set to buzz off at 45°C, 55°C, or 65°C. The 80mm fan clips into place with a special set of power jacks, and is hot swappable. If the host drive can provide a hard drive failure signal, of if temperatures reach the threshold, a nice loud alarm will sound alerting you to the problem. Furthermore, a pair of red LEDs will glow brightly on the front of the unit if either situation occurs. A small reset button on the front will silence the siren.

(Note: no SATA hard drives are included with the product, you will need to supply your own.)

In the likely situation that the single sheet of "instructions" is misplaced, a sticker with the pin-outs is affixed to the bottom of the four-bay SATA hard drive module. Nice. Now let's wrap up this review and highlight some of the aspects of IcyDock's product that are likely to be of most interest to you next.