Pros: Excellent product, so far. Was able to convert Zip250 drive to spare SATA port with no problems.

Cons: Instructions could be a bit clearer, or perhaps written by someone who speaks the language natively.

Overall Review: Make sure you use this in a single drive setup. Set jumper to Master and make sure you connect the power supply to both the drive and the converter. Does not seem to like multiple drive configurations.

Pros: Good for 3 months at a time

Cons: Random double-clicking, loss of tracking capability, track ball freezes because of sub-quality glides

Overall Review: This is the 3rd M570 that has gone bad. Logitech replaced the previous bad Trackballs and now this one is bad again. They promised a return label and another replacement but nothing showed up. They no longer acknowledge my calls or emails. I have given up on them as a company. Buy something else, this is not the Logitech that you remember...their hardware is junk.

Pros: Excellent condition for a refurbed HD...and it works like new, no rattle, no hum, and no buzz.

Cons: None

Overall Review: HD was delivered promptly, in fact a day early. This vendor takes their product seriously; it was wrapped in an anti-stat bag and then double bubble bagged. I could have been dropped from a plane safely. Nice job ODW.

Pros: It worked for a while

Cons: This DVD W/R drive was okay sometimes, usually flakey, then stopped working all together.

Overall Review: Purchased as part of a new system build: MoBo, CPU, RAM and HDs. It supposedly has a 1 year warranty but there is no way to make the claim on Newegg. What's up with that?

Pros: Fast and quiet while it worked.

Cons: Died after 8 months of not everyday use. Used primarily as a B/U drive, so there was no stress involved

Overall Review: I have a WD hard drive that has been spinning up daily for over 4 years without so much as a blip. What's up with the new WDs that they conk out so quickly?

Pros: First 6 months it works great

Cons: Ball starts to stick and movement is difficult and erratic.

Overall Review: This is the third M570 Trackball I have had in slightly over a year. The first was purchased and the other two have been replacements from Logitech. This new design uses much smaller carrier rollers for the track ball, as a result they wear down very quickly; in my case, every six months. I work from home and I am on the internet 12-14 hours a day so this Trackball gets a lot of use, but that is no excuse. The Red Ball Trackball that this one replaced lasted over 4 years, it had much larger and sturdier rollers.. I have an on-going issue with Logitech over this new design and until they come up with a more robust carrier system I can't recommend this M570 model.