When a Hub Is Enough

• You only need more USB‑A/C ports for peripherals.
• You don’t drive external displays through the same cable.

When You Need a Dock

• Multiple displays via USB‑C/USB4/TB (DP Alt‑Mode or tunneling).
• 1‑cable setup: power + video + data.
• RJ‑45 Ethernet, SD readers, audio combo jack.

Display Clarifier

• USB 3.x hub + HDMI often uses DisplayLink (driver-based).
• USB‑C Alt‑Mode / USB4 / TB relies on GPU lanes—smoother video, less CPU.

Buying Tip

• For Windows dual‑4K or 120 Hz, prefer USB4/TB4 docks and certified cables.