|OS X Yosemite|
With OS X Yosemite and iOS 8, your devices work together in even smarter ways. Now you can make and receive iPhone calls on your Mac, even if your iPhone is in another room. Send and receive both iMessage and SMS text messages on your Mac. Start an email, document, or browsing session on one device and instantly pick it up on another. And turn on the Personal Hotspot on your iPhone right from your Mac so you can get online in an instant..
|Connections and Expansions|
SDXC card slot
Four USB 3 ports
Two Thunderbolt ports
Mini DisplayPort output with support for DVI, VGA, and dual-link DVI (adapters sold separately)
10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
Kensington lock slot
Apple Wireless Keyboard
Full-size keyboard with 78 (U.S.) or 79 (ISO) keys, including 12 function keys, 4 arrow keys (inverted "T" arrangement)
Smooth, seamless Multi-Touch surface with support for simple gestures (scrolling and swiping). Click and double-click anywhere. Ambidextrous construction accommodates left- and right-handed users.
Glass Multi-Touch trackpad for precise cursor control; supports inertial scrolling, pinch and expand, swipe, three-finger swipe, four-finger swipe, tap, double-tap, rotate, screen zoom, scroll, click and drag, click drag and lock, secondary click A and B.