Pros: I have 128GB, it's 48Mb/s speed To answer the review of the owner of Lenovo X220: I had the same speed, and in order to get full speed it's needed to used this express card reader TS-RDF1 or a good USB 3.0 Card reader So your Thinkpad X220 it's not the reliable source to check the speed.

Cons: NONE

Pros: Advantage: 4TB and faster

Cons: Disadvantage: More expensive per GB, double size and double weight of a 2TB. Needs more energy, sometimes two cables needs to be used in order to provide energy.

Overall Review: The reason giving 3 eggs it's because the price benefit. For most users this hard drive only will be worth to buy when the price per GB will be cheaper than 2TB. On Newegg sometimes it's possible to buy for $90 a 2TB HD Comparasion: Seagate 4TB STDA4000100 4.60"(L) x 3.25"(W) x 0.88"(D) Weight 0.68 lbs. Seagate 2TB STDR2000102 4.47"(L) x 2.99"(W) x 0.48"(D) Weight 0.35lb

Pros: 9GB file Speed Write 48.8mb/s

Cons: NONE

Pros: Perfect on everything: biggest and featest HD on the market quiet drive. I am extremely Happy with this drive. i am using already 10 drives all came perfect.

Cons: NONE.

Overall Review: Don't read reviews saying : DOA. Any product can brake. if DOA, Seagate will replace, so what is the problem? you should have backup any way. Seagate has better global warranty than any other brand. and Seagate drives are the most resisting drives. all other brands brake more than Seagate.

Pros: 100% Best price benefit of the market. i think is Wolrd Wide warranty. I am Using with RafaWay Windows 7 Optimized.

Cons: NONE

Overall Review: Just Buy It

Pros: Class 6, excellent Brand Transcend, fast, best for camcoders

Cons: NONE, i wish i could buy a faster for the same price.

Overall Review: This card is beeing used on the following camcorders and worked very well: Canon Vixia HF200/HFS100 Panasonic HMC40/HMC150/ HDC-TM700 HDC-HS700/ HDC-TM300