Thunderbolt 3

Thunderbolt 3 - Why You Need the World's Fastest Port? 

If you want to connect your notebook to multiple 4K displays, attach a graphics amp, transfer giant files to the fastest external drives or grab RAW video from an expensive camera, you should get Thunderbolt 3. With a maximum speed of 40Gbps, it's the fastest port on the market today. 

40Gbps, 4 x speed of the Fastest USB Connection: 
Thunderbolt 3 is capable of transmitting at a rate of 40Gbps, which is a lot quicker than USB 3.1's rate of 10 Gbps or USB 3.0's limit of 5 Gbps. It's also double the bandwidth of Thunderbolt 2 (20 Gbps). With that kind of throughput, you can attach a graphics amplifier like the Razer Core and turn your lightweight laptop into a bona-fide gaming rig, because the system can contact the GPU at the same speed as if it were attached directly to the motherboard. You can copy files to a speedy external SSD that's faster than most internal drives. The same benefits apply when you're recording directly from a professional-grade 4K video camera. 

Uses the USB Type-C Connector: 
All Thunderbolt 3 ports are also USB Type-C 3.1 ports and use the Type-C's thin, reversible connector. You can connect any USB Type-C device to any Thunderbolt bolt, because technically, Thunderbolt is an "alt mode" for USB. However not all USB Type-C ports and wires support Thunderbolt 3. For example, the Apple MacBook and Lenovo ThinkPad 13 have USB Type-C ports that don’t support the faster standard, but the HP EliteBook Folio G1 and Dell XPS 13 do have Thunderbolt 3.

Connect Two 4K Monitors at once via DisplayPort: 
Thunderbolt 3 can transmit video via the DisplayPort (DP) 1.2 standard, but one-ups DP by offering two connections in a single wire. So while, a single DP 1.2 cable can handle only one 4K monitor while running at 60 Hz, a single Thunderbolt 3 connection can output to two 4K monitors at 60 Hz, one 4K monitor at 120 Hz or one 5K (5120 x 2880) monitor at 60 Hz. You can connect from a Thunderbolt 3 port directly to a single monitor, using a Thunderbolt-to-DisplayPort cable. However, if you want to use multiple monitors over a single cable, you'll need a Thunderbolt dock.

Enough Power to Charge Most Laptops:
Because they use the USB Power Delivery standard, Thunderbolt 3 ports can send or receive up to 100 watts of power, which is more than enough to charge most laptops. Indeed, on some superthin laptops, the Thunderbolt 3 port is the only A/C port. However, workstation and gaming-class laptops require a lot more than 100 watts. Thunderbolt 3 can also deliver up to 15 watts of electricity to bus-powered devices. So, external hard drives, cameras and portable monitors can consume a lot more juice.

High-Speed, Peer-to-Peer Networking:
You can connect two PCs together using a single Thunderbolt 3 port and get a 10Gb Ethernet connection. That's 10 times faster than most wired Ethernet ports. So, if you need to quickly copy a giant file to your co-worker's laptop, you'll be able to do it at really high transfer rates.

Daisy Chain Up to 6 Devices:
You can connect up to six different computers and accessories to each other using Thunderbolt 3 cables. Imagine connecting your laptop to a high-speed hard drive then sending another wire out to a monitor and a third wire from the monitor to a high-speed camera. If all the devices in the middle of the chain have two ports (one for in and one for out), you can do it.