# item.guide
Side-by-Side Comparison USB

USB 3.2 Gen 2x2 vs. USB Power Delivery

Comparing 2 standards across 8 specifications. 8 key differences identified.

Comparing:
USB 3.2 Gen 2x2
USB Power Delivery

USB 3.2 Gen 2x2, part of the USB 3.2 specification released in September 2017, is the only tier in the 3.2 family that's genuinely new hardware rather than a renamed predecessor -- it doubles Gen 2's 10 Gbit/s by running two lanes simultaneously, reaching 20 Gbit/s, but only over USB-C connectors and cables wired for it.

View full USB 3.2 Gen 2x2 spec sheet →

USB Power Delivery (USB PD) is a separate negotiation protocol governing how much power flows over a USB-C cable -- independent of the cable's data speed. Standard Power Range tops out at 100W (20V/5A); PD 3.1's Extended Power Range (2021) raised that ceiling to 240W (48V/5A), requiring cables with a built-in identification chip.

View full USB Power Delivery spec sheet →

Specification Comparison Table

8 Parameters
Parameter / Spec
Released
September 2017
Max Bandwidth / Data Rate
20 (2 lanes x 10 Gbit/s each) Gbit/s
Connector Required
USB-C only (dual-lane wiring not present in USB-A/B)
Marketing Name
USB 20Gbps
PD 1.0
2012 -- up to 60W
PD 2.0
2013 -- up to 100W (Standard Power Range, 20V/5A)
PD 3.1 (EPR)
2021 -- up to 240W (Extended Power Range, 48V/5A)
EPR Cable Requirement
Built-in E-Marker identification chip