Ultra WQHD enables a screen resolution of 3440x1440 — 2.5 times the pixel density of Full HD — that delivers razor-sharp images. The greater pixel density also creates a wider screen workspace. Thunderbolt 3 ports X 2. Thunderbolt 3 transmits video and data at speeds of up to 40Gbps — 8 times faster than USB 3.0 — and simultaneously charges devices all over a single cable