2015 MacBook Pro 13.3" Retina, Core i5, 8 GB RAM, 256 GB SSD – Refurbished-2 Years warranty imac 4 (12E4022) Maximum MacOS: X

4 (12E4022) Maximum MacOS: X 10

RAM Speed: 2666 MHz Standard RAM: 8 GB Maximum RAM: 32 GB* Motherboard RAM: None* RAM Slots: 2* Video Card: Radeon Pro 560X* VRAM Type: Dedicated Standard VRAM: 4 GB* Maximum VRAM: 4 GB* Built-in Display: 21

Apple  2014 iMac 21

Input: Trackpad (Inertial) Case Type: Notebook Form Factor: MacBook Air 11" Apple Order No: MD711LL/A* Apple Subfamily: Mid-2013 Apple Model No: A1465 (EMC 2631) Model ID: MacBookAir6

5 GHz Intel Core i5 processor (3210M) with two independent processor cores on a single chip

2015 MacBook Pro 13.3" Retina, Core i5, 8 GB RAM, 256 GB SSD – Refurbished-2 Years warranty imac 4 (12E4022) Maximum MacOS: XThe MacBook Pro "Core i5" 2. 7 13 Inch (Early 2015 Retina Display) features a 14 nm "Broadwell" 2. 7 GHz Intel "Core i5" processor (5257U), with dual independent processor "cores" on a single silicon chip, a 3 MB shared level 3 cache, 8 GB of onboard 1866 MHz LPDDR3 SDRAM (which could be upgraded to 16 GB at the time of purchase, but cannot be upgraded later), 128 GB or 256 GB of 4 Lane PCIe based flash storage by default, and an integrated Intel Iris