is the 4 port usb hub 2.0 or 3.0?

Hey Andy, I just got an email to help you with your question. I am at work now, but as soon as I get home I will help you out and let you know if it is 2.0 or 3.0. Because I am not actually sure? I know my G751JY-DH72X hooks up to it no problem.

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Cooler Master NotePal ErgoStand III - Premium Ergonomic Laptop Cooling Stand with Large 230mm Silent Fan, 4-Port USB Hub, and 6 Height Settings

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Large 230mm Silent Cooling Fan
4-Port USB Hub
Whisper Quiet Operation
Strong, Adjustable Laptop Support Pegs
6 Adjustable Height Settings
Removable Diamond Mesh Fan Cover

Overview

Specs

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THE IDEAL LAPTOP COMPANION

The Cooler Master NotePal ErgoStand III is a premium ergonomic laptop cooling stand that provides 6 levels of incline for the perfect viewing or typing angle. A large, 230mm silent fan provides excellent airflow and 4-port USB hub expands device connectivity.

HIGHLIGHT FEATURES

EFFECTIVE, QUIET COOLING

A large, 230mm fan with a special blade design provides highly effective and quiet performance to keep your laptop cool.

EXPANDED CONNECTIVITY

A built-in USB hub provides 4 additional ports to plug in external peripherals such as keyboards and mice for the perfect laptop docking station.

HEIGHT ADJUSTABLE

Find the perfect angle by adjusting the stand's incline with 6 different levels.

EASY MAINTENANCE

An easily removable front panel allows you to quickly clean any debris or dust that might build up.

ADDITIONAL FEATURES
Self-lubricating, IP6X dustproof Loop Dynamic fan bearing lasts over 160,000 hours.
Silent Driver Integrated Circuit chip ensures ultra low-noise, minimal vibration, and extremely low power consumption.
High quality aluminum fan speed dial.
Built-in cable management grooves.

SUPPORT PEGS

Strong, adjustable support pegs keep various devices secure even at the highest incline.

COVERAGE

Parts, product replacement, and free technical support.

WHICH LAPTOP COOLING STAND IS RIGHT FOR YOU?

	ErgoStand LITE	ErgoStand III	SF-17
Laptop Compatibility	Up to 15.6"	Up to 17"	Up to 17"
Cooling Fan	160mm	230mm	180mm
USB Ports	2	4	4
Height Settings	5	6	4
LED Lighting			✓
Fan Speed Dial	✓	✓	✓

Brand	Cooler Master
Model	R9-NBS-E32KU-GP

Color	Black
Maximum support size	Support up to 17-in. Laptop
Fan Numbers	1
Fan Size	230 mm Fan
Specifications	Dimensions: 15.2" x 11" x 1.8" – 8.9" Fan Dimensions: 9.1" x 9.1" x 0.6" Fan Speed: 500 –800 ± 15%RPM Fan Airflow: 72 CFM Fan Air Pressure: 0.26 mmH2O Fan Noise Level: 21 dBA Fan Speed Control: Fan Speed Dial Power: USB 5V DC USB 2.0 x 4 + mini USB x 1 + micro USB x 1 Current Consumption: 0.26A Compatibility: Supports up to 17" laptops, tablet PCs