Details(Refurbished PC) Model no.: A1398 Mac OS X 10.15 Core System CPU: 2.4GHz quad-core Intel Core i7 Level 2 cache: 6 MB shared cache Bus: 1066 MHz RAM: 8 GB, GPU: Intel HD Graphics 4000 and GeForce GT 650M with automatic graphics switching VRAM, Intel HD: uses 384 MB of system memory VRAM, Nvidia: 1 GB Video out: HDMI or Thunderbolt port, which is backward compatible with Mini DisplayPort (VGA, DVI, HDMI, and DisplayPort supported with optional adapters) display: 15.4″ (38 cm) 16-bit 2880 x 1800 220 ppi color active matrix supports 1920 x 1200, 1650 x 1050, 1280 x 800, and 1024 x 640 pixels at 16:10 aspect ratio allows mirroring to external display or extended desktop mode supports two external displays to 2560 x 1600 resolution Drives Hard drive: 512 GB solid state drive (SSD) standard on 6 Gbps SATA bus, 768 GB SSD also available optical drive: external only Expansion Thunderbolt: 1 port USB: 2 USB 3 ports, only 1 high-powered device device allowed FireWire 400: optional Thunderbolt to FireWire Adapter FireWire 800: optional Thunderbolt to FireWire Adapter Ethernet: 10/100/gigabit WiFi: 802.11n AirPort Extreme built in, three antennas support up to 450 Mbps bandwidth Modem: No longer offered by Apple Bluetooth: BT 4.0 built in ExpressCard/34: none SD Card Slot: 1 SDXC slot expansions bays: none IR receiver: supports Apple Remote webcam: FaceTime 720p HD camera Power battery: 77.5 Watt-hours, 7 hours of wireless productivity AC adapter: 85W MagSafe 2 Physical size: 9.73 x 14.13 x 0.71″ (247 x 359 x 18 mm) Weight: 4.46 pounds (2.02 kg)
