Reddit reviews Transcend 128GB JetDrive Lite 360 Storage Expansion Card for 15-Inch MacBook Pro with Retina Display (TS128GJDL360)

It's impossible to upgrade the drive, but that's not to say you can't add space. Extra 128 GB for 13" and 15"

This is another option if you don't want to have to carry an external HD.
http://www.amazon.com/Transcend-JetDrive-Storage-Expansion-TS128GJDL360/dp/B00K73NWK0/ref=sr_1_4?ie=UTF8&qid=1407718386&sr=8-4&keywords=pny+storedge

I'd say yeah, especially with the integration with other Apple products. I have a 13' rMBP 128GB which works well for me but if I had the $200 I would have shelled it out for sure. There are options like JetDrive that work well, and if you don't use your SD slot you just forget about it.

Other than that just get good amounts of RAM and if you have files from Windows you want to put on an external make sure it's formatted for HFS.

Best bet is to try and get a 128gb or 256gb sd card that sits flush on the side of the macbook air. Something like this.

https://www.amazon.com/Transcend-JetDrive-Storage-Expansion-TS128GJDL360/dp/B00K73NWK0/ref=sr_1_14?ie=UTF8&qid=1480628768&sr=8-14&keywords=128gb+sd+card+for+macbook+air

Upgraded my 2009 MBP to a 2013 rMBP. My advice:

• Max out RAM when you buy it, because that's the one thing you really can't upgrade.
  
• Get a reasonable amount of storage. I have 512, and although I occasionally run close to filling it up, I always have junk I can delete to free up enough room.
  
• I got one of these and put my music library on it. My reasoning behind putting music, specifically, on it is that music a) takes up a significant portion of my storage, b) doesn't suffer from slower read speeds, and c) when I need my SD slot to import photos, I can just quit iTunes and eject it.
  
  I do graphic design work, and this setup affords me more than enough space and power for my computer to function as a personal and professional machine.

Here you go, this card sits flush:

http://www.amazon.com/Transcend-JetDrive-Storage-Expansion-TS128GJDL360/dp/B00K73NWK0/ref=sr_1_2?ie=UTF8&qid=1414442297&sr=8-2&keywords=macbook+sd+card

Not for this model. Only the 2012 and early 2013 models have the possibility to use third party ssds. Like these: http://www.amazon.com/Transcend-JetDrive-Upgrade-Macbook-display/dp/B00LJO86NY/ref=sr_1_fkmr0_2?ie=UTF8&qid=1426020018&sr=8-2-fkmr0&keywords=Transcend+JetDrive+725+interne+SSD+240GB

Or this: http://www.amazon.com/Transcend-JetDrive-Storage-Expansion-TS128GJDL360/dp/B00K73NWK0/ref=sr_1_1?ie=UTF8&qid=1426020255&sr=8-1&keywords=Transcend+JetDrive+Lite+360+128GB

But I'd only use this if speed doesn't matter.

Personally I think it might be worth just getting a large class 10 SD card? Install onto that and use it like an SSD in the SD card slot.



There are also options deigned for the MacBook Pros that's a similar idea too.
Here is the largest and most expensive one:


Transcend JetDrive Lite 360 128GB Storage Expansion Card https://www.amazon.co.uk/dp/B00K73NWK0/ref=cm_sw_r_awd_G0mJub1AWTGB6