USB 3 0 HUB, Cateck Bus-Powered USB 3 0 3-Port Hub with 2-slots Card Reader Combo for iMac, MacBook Air, MacBook Pro, MacBook, Mac Mini, PCs and Laptops
  • ★Sleek Apple-style design ideal For Mac Pro, iMac, MacBook Air, MacBook Pro, MacBook, and Mac mini
  • ★Adds 3 USB 3.0 ports and 2-slots Card Reader to your computer; Supports SDXC (up to 2TB), SDHC, SD, Micro SDXC, Micro SDHC, Micro SD cards
  • ★Plug and play; Hot swapping; USB-powered (no external power or battery needed)
  • ★Built-in Overvoltage / Overcurrent / Leakage and Short-Circuit protection unit; Backward compatible with USB 2.0 / 1.1
  • ★Compatibility: Windows 2000 / ME/ XP / Vista / 7 / 8/10 (32bit/ 64bit ) and MAC OS 10.X or later version
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The Cateck USB 3.0 hub with card reader is designed especially for laptops, tablets, and ultrabooks and expands one USB 3.0 high-speed port into three easily. 
It also features SD and TF card slots, which makes reading different types of memory cards very convenient, and the use of USB 3.0 allows for the fast reading of large media files, meeting the needs of those who need their files in HD. 

Designed to match Macs, iMacs, and MacBooks

Its metallic silver finish and Apple-styled curved edge with shielded white cable complement Apple computers and products.

Card Compatibility

SDXC (up to 2TB), SDHC, SD,Micro SDXC, Micro SDHC , Micro SD; Backward compatible with USB 2.0 / 1.1

System Requirements

• Windows XP / Vista / 7 / 8/10, Mac OS 9.1 and above 
• Mac OS X Lion 10.7.4 users should upgrade to Mountain Lion 10.8.2 or later to avoid unstable connections. 

Power Usage Alerts

• For stable operation, devices connected to this hub should not exceed a combined current of 5V 900mAh. 
• It is not recommended to use this USB hub for too many peripheral devices with high energy consumption. Two external 2.5 "hard drives without any additional power supply to bring the USB port of the PC is already at its limit. 
• This hub is not meant to serve as a stand-alone charger. It is not compatible with iPads or any other devices with irregular charging requirements. 
• 2.4Ghz wireless devices, such as wireless keyboard and mouse adapters, may not work in close proximity to USB 3.0 devices or hubs. Connecting to a USB 2.0 port is recommended. 
Make every effort to solve your doubt
+ Does this cause any interference with a 2.4GHz wireless keyboard and mouse?

1.I have a iMac and I've had no interference between the Cateck bus powered USP 3.0 and either the keyboard or the smart mouse. 
Bluetooth is 2.4GHz as well, and my Mouse/Keyboard don't have any issues. 
My Apple Magic Mouse has some serious interference issues with this Cateck USB 3.0 Device plugged in with my Mac Pro. 
No issues using this USB 3.0 hub with a 2012 Mac Mini and Apple wireless keyboard and Magic Mouse (Bluetooth). Also have a Bose Bluetooth speaker attached as well and have not noticed any interruptions or drops while streaming music. All while using this USB hub. 
It works great on both Blutooth and wireless 

+ Can this hub be used as a charger base for pairs of iPhones, Apple watches, and

1. The 6-port model appears to come with the external 5 V power adapter, so this should be adequate for charging external devices. However, they will probably only charge at the slower USB 3.0 rate (0.9 amps). If you want to charge devices at full speed, a dedicated charger is the best option. This product is best for connecting USB (data) devices to a computer.
2. I use it on occasion to charge my phone only. Its not a powered hub.
3. May be you can charge your device from the USB Ports, however the charging speed is slow. Since this hub is not meant to serve as a stand-alone charger. It is not compatible with iPads or any other devices with irregular charging requirements.

+ Could i put a microsd and an sdhc card in and copy from 1 to the other without h

1. yes, you can copy files directly from SDHC to MicroSD without having to copy to computer first
2. Yes this Card Reader is capable of transferring files from a MicroSD Card to HDSD Card without copying files to the PC first. File transfer speed are range between: 4-6 MB/s.

+ Why does my hard drive still spin when connected to the hub after my computer

Why does my hard drive still spin when connected to the hub after my computer is turned off?

Some hard drives will remain active even without a signal from the computer. Whether your hard drive will do this or not depends on the manufacturer and design of your drive.

We suggest unplugging the power adapter of both the hub and the hard drive to ensure the hard drive shuts down.

+ Why is the transfer rate so much slower than the 5Gbps promoted?

The USB 3.0 transfer rate is 5Gbps and has a theoretical transfer speed of 500MB/s which is about 8 times faster than the USB 2.0 transfer rate of 480Mb/s with theoretical transfer speed of 60MB/s.
There are numerous variables that will affect USB transfer rate including data source and destination and file type. With all reasonable usage environments taken into account USB 3.0 can achieve average transfer speeds about 3 times faster than that of USB 2.0.

+ Do you have any driver for the hub?

Our cateck Hubs are plug-and-play so there's no need for extra drivers, but we do recommend updating your USB controller’s drivers and firmware to the latest version. This ensures a smooth experience using any USB devices. To do this you should identify the brand of your USB controller then search online, or contact your PC/motherboard supplier directly.

+ Why does Apple SuperDrive not work with your Cateck hub?

Apple have addressed this issue and said that SuperDrive is only designed to work with USB ports on selected Apple computers. It is not recommended for use with USB hubs. (See Apple support article

+ When my hub is connected through the ports on my Apple expansion card

When my hub is connected through the ports on my Apple expansion card it fails to be recognised, why is this?
Mac expansion cards don’t tend to support non-storage devices (more info is available from your expansion card manufacturer's websites). It is recommended that you plug hubs into the Mac’s built in USB ports.

+ Devices are not being identified by my computer when connected to the USB hub

Devices are not being identified by my computer when connected to the USB hub, but they are being identified when connected directly to the computer. Why?
This problem may be the result of one of the following:
a. Insufficient power supply. Please connect the USB hub to a power source.
b. Compatibility issues between the motherboard and system. Please try refreshing the BIOS in the motherboard.
c. Incorrect insertion or unplugging. Do not unplug the device when transferring data in order to avoid damaging the chipset.
d. Improper driver installation. Under “Device Manager”, go to “Other Devices” and select “Universal Serial Bus Controllers”. If there are any yellow question or exclamation marks visible, uninstall the driver in “Device Manager”, then restart your computer. The driver will be reinstalled automatically.

+ Why is my computer unable to boot when the hub is plugged in?

1. Please check if the hub works as normal if you plug it into your PC after the PC has already completed its start up.

2. Please unplug the AC adapter from the hub and see if the PC will start up with the hub plugged in. If this solves the problem then the issue is with the hub. Please feel free to contact our support team for an exchange or refund. If it does not help, Please attempt the further troubleshooting below:

a. The computer can’t start because it can’t read system files. This occurs when the BIOS is set to “Start the Computer from the USB Device”. In order to solve this, change the setting to “Start the Computer from the Hard disk”.

b. Check the USB 3.0 host and make sure its drivers are up to date.

c. Try a different USB 3.0 cable/usb port.

If the further troubleshooting doesn't help then contact our support team.