Pros: -Utilities to monitor power (if it worked) -Fully Modular cables -Nice packaging (cables come in their own storage case)

Cons: -Defective unit received. -Cables look like standard PSU cables, but are not compatible with other PSU cables -Thermaltake's inability to respond to my RMA request. -The internal USB header only needs to be a 4- or 5-pin plug rather than the supplied 9-pin plug (ended up using an internal USB expander and offset the plug so it would not block the unused pins)

Overall Review: Hooked this unit to my power supply tester before installing and the unit failed. PG signal showed as 970 ms (normal spec is 0-500 ms). I gave it a try anyhow. The computer would start after every 10 presses of the button (I had to hold the power button like I was push starting a Studebaker). Because of this, my BIOS was corrupted 3 times (thankfully I have dual BIOS and was able to recover). I waited too long before starting my build and am unable to RMA through Newegg. I tried to RMA through Thermaltake and was directed to Tt’s RMA website. Unfortunately, their site requires you to select the product from a pull down list in order to start the process. The website only has a selection available to RMA the TPG-850M (the normal Toughpower 850), but not the TPG-850D (this product). I wanted to do a cross-ship RMA, but I am not willing to select the incorrect product. The TPG-850D is what I paid for and it is what I want. I contacted Thermaltake about the RMA issue (per their website instruction) several times and they are blowing me off (I contacted them on Dec 10th). The five-year warranty would be awesome if they actually honored it. I like Thermaltake power supplies, but this may be the last one I buy. I had to run out to the local brick and mortar store and get a PSU to get my computer up and running. I was hopeful of a quick RMA and left all the TPG-850 cables in place in my computer case. The (what I was hoping) temporary PSU I installed has wires along the front of my case and makes my build look ugly. This is because the TPG-850D uses different cables than any other PSU I have ever encountered (I already had these cables routed and hidden). You cannot plug TPG-850D cables into a different PSU. The modular cables ends that plug into the PSU are the standard size and shape as other PSUs, but the pins are different and will not plug into a different PSU. You cannot use standard/after market cables with this unit for the same reason. Be warned that if you need longer cables you will probably have to get them from Tt. I give it one egg since the power supply actually worked on the times I got it to start. Unfortunately, since it almost destroyed my system I wish I can rate it only half an egg