I ordered it to replace the slow hard drive from my old MacBook White 2007 ... WOW! THAT benefits, formatting / OSX installation without hooked, all loads are faster one feels a sharp difference, even on a limited computer that has more than 8 years. Lighter than a traditional hard drive, no noise, no heat and consumes less, only advantages for a portable computer.
My choice for this SSD has been done to its brand, quality, but especially for its price of only 47, since my MacBook offers only SATA1, performance was equal to me as they were to be clamped.