Which ssd to buy for Macbook Pro 13 mid 2012 (processor - i5, RAM - 4 GB)?

Question

Solid State Drives

I would like to combine ssd with a native hdd (Toshiba - 500gb) so that the result is a volume with shared memory, and the solid state would work with frequently requested data, and with, accordingly, less demanded - hard.
ssd requirements

• volume 100 - 128 GB
  
• adequate system acceleration (work with Ai, Id, Ps, etc. not for the server)
  
• price up to 7000 rubles
  
• resource from 3 years (it will be good if someone explains what these "20K erase cycles" mean)
  
• manufacturer's warranty not less than the service life
  
• compatible with mac motherboard
  
• the ability to install in place hdd
  
• trim support or the ability to enable it according to the instructions
  

Tell me which product to choose, why, where, it would be nice to support the advice with examples from life. (why you shouldn’t go directly to apple) Explain in detail the procedure for installing ssd in place of the hard drive and hdd in the dvd port, the necessary additional equipment (what the hell is there for overseas triangular screwdrivers I advise on youtube), and the subsequent creation of a shared volume, it is advisable not to give bare links without explanation - I have them and so.

Answer 1

I have a similar model, to be more precise - MD101 (LL / A). And also thought of this thing, an upgrade. SSD and RAM. But, for now, I stopped for a while, to begin with, replace the native 4 GB (2x) sticks with Corsair Vengeance 16GB (2x8GB) DDR3 1600 MHz (PC3 ... - because, before increasing performance, you need to at least install more sticks Why? There is no sense in an SSD if it costs some miserable (yes-yes) 4 GB. It is necessary that the system works together with both the HDD (in the future SSD) and RAM.
If you really need an SSD so much, then feel free to take this model Intel 530 Series SSDSC2BW120A401 2.5" 120GB SATA I... . At the office of Intelit says that SATA III (6Gb), it also has TRIM support, which is also very, very good. Since the system is for work, in the sense, not for a server, then at least three years will be enough.
20K cycles means that you can write / delete up to 20 thousand times. Then either the SSD dies (which is unlikely), or it goes into read only mode.
You can find screwdrivers in your city or from acquaintances / friends. Usually watchmakers use these - small tips. And you can find the installation procedure both on YouTube and on Habrhabr. There is nothing complicated there. Regarding the general volume - why? When you can give the SSD completely under the system, and add. the hard drive will serve as a la storage. SuperDVD (or whatever it is, a drive) pull it out and put it in a box, for example, in such a .