SAMSUNG Spinpoint MP4 HM640JJ 640GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive

Pros: Fastest Biggest yet. Seagate announced a 750mb/7200/9.5mm drive months ago and it's been delayed until the end of the year. I got tired of waiting and so I jumped on this as soon as it was released. Here are some hard numbers: SS=Samsung HM640JJ , SG=Seagate ST9640320AS 5400/640mb/2.5", WD=Western Digital WD1001 7200/3.5" desktop drive sequential read/write mb/s SS 112/106 SG 89/86 WD 111/109 Random 512kb read/write mb/s SS 36/40 SG 35/41 WD 47/68 Random 4kb read/write mb/s SS .910/.910 SG .815/.774 WD .766/1.711

Cons: none

Pros: (Cons are greater than Pros if you get a bad drive.) Benchmarks faster than 7200 RPM 500GB Hitachi (HTS725050A9A364) I was replacing. Quiet, large capacity, good price.

Cons: Bad Sectors early on! Cannot use this drive.

Overall Review: Were only 4 reviews when I bought from Newegg. I disregarded the 2 about bad sectors. Now I question this drive's reliability: Disk Cloning software reported disk error early on, so ran chkdsk /r and seemed to resolve. Later, got some other disk error, decided to use Samsung Diagnostic boot CD, found numerous errors, diagnostic recommended "Erase HDD" which translates into doing low level format. Took 5 hours to format, then ran surface scan again, (more hours) and reported "No errors" I hoped that I just had a drive with a few bad sectors, needed to be re-mapped, HOPED that would be the end of it. WRONG. Couple weeks into using cloned Windows 7 on the drive, drive issues seemed to crop up, ran Samsung Diagnostic again, 2 new bad sectors. Definitely have to either return, replace, or RMA the drive. Haven't decided if I *trust* this model now. If you buy this drive, I recommend doing disk checks and if things start seeming "wrong" to check the drive with Samsung diagnostic.

Pros: Excellent transfer speeds, low noise, high capacity with small form factor (9.5mm thick, not 12.5mm).

Cons: None

Pros: This HDD is well worth the money. I use it for my MacBook Pro 2010 i5 15 inch model and it really speeds things up. It does not effect my battery life in any way and it's just as quiet if not more quiet than my stock drive. Installation is fairly easy if you have some kind of know how with the inside of your computer.

Cons: The only bad thing I could say about it is that It was a pain finding the type of screw driver needed to screw it in. It takes a Torx 6 Screwdriver. You can get it fairly cheap at a hardware store like Sears for fairly cheap. It really wasn't Samsungs fault though.

Overall Review: Overall, I think this drive is great. I've had it since Christmas 2010 and haven't had a problem yet. I've gotten one other friend to buy it for his Mac, and he hasn't had any issues either. I looked at Western Digital and a few other brands but I heard a lot of issues about people buying them for their Mac.

Pros: Excellent price, speed, storage and quality

Cons: none that I can find

Overall Review: I bought this drive to upgrade my Macbook. I had started to run low on drive space and hated using an external for my rather large iTunes collection so I decided to upgrade. I couldnt be happier with the performance and amount of space.

Pros: Excellent replacement drive for Sony Vaio

Cons: none

Overall Review: Would recomend for amy notebook

Pros: Fast Quiet smooth Still highest capacity 7200rpm drive available Reliable

Cons: None to date

Overall Review: This drive revived our 2006 Macbook Pro. Faster, quieter and smoother than the 320GB 7200rpm Seagate it replaced. Between business and home we have 11 Samsung drives now running, and have retired several just because they became too small. Every one of them have been 100% reliable.

Pros: Got two of these for 2u rack mount audio computer nice compact size desktop like performance read write speed 108/112 not bad for 2.5 stay cool even stacked can hear them at all.

Cons: SSD is blazing fast but too much for me also reliability is not very good with ssd yet.

Overall Review: There great plenty fast and small you can cram these any where in a case silverstone makes a nice 3.5 adapter fit great with the pair.