Specs:   Supports the latest 10.12.6 Sierra MacOS Operating System! Sleeper 4.01GHz 8 Core Logic Quad Intel that turbos faster than a Porche 911 (up to 12-core Logic performance!) 8MB fully shared L3 cache 1.5GB of Video RAM, perfect for Hi-rez 4K Ultra HiDef Displays! FULL 16GB 3000MHz+ DDR4 SDRAM (Instant memory access!) Custom TUNED HD Intel Skull Crab Graphics for High frame rate 4K resolution via DisplayPort (adapts to HDMI or DVI also) Connect many additional monitors simultaneously via SuperSpeed+ technology! 2,256GB Total = 2,000GB + 256GB M.2 SSD Drive! Instant Random Access Solid State Storage Technology! - ULTRA-THREAT FUSION! - The NEW Standard in ABSOLUTE TOP PERFORMANCE/CAPACITY RATIO! Built-in Airport Extreme Wi-Fi, amplifier-ready for extended coverage via SMA connections! One Gigabit Ethernet Port w/ Jumbo Frame support. Analog out utilizing Audiophile Quality DAC with 115dB s/n ratio! Digital Audio Output SPDIF supports 24bit 192kHz Analog Audio Input w/ 104dB s/n ratio! Excellent for High Quality Recordings! Bluetooth 4.0 + EDR (Enhanced Data Rate) wireless technology! 6 USB Ports 3.0 (5Gbps each) 2 USB C Ports 3.1 (10Gbps each) USB DEDICATED FAST charging ports for replenishing digital devices even while your machine sleeps! ONE open full-length PCI Express 3.0 expansion slot with mechanical support for 16-lane cards; Future nVidia Video Card Upgrade Support!  nVidia GTX Titan plug-n-play support!