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It is likely that Windows has automatically turned off the USB Root hub to save power and caused the issue. The steps below instruct how to configure the USB root hub to stay on during the sleep mode of the upstream computer, to prevent this from happening.Windows 10 / 8 On your keyboard, press the Windows Key plus X and select Control Panel. Click Hardware and Sound, then click Power Options. Click Change plan settings for the plan you want to change. Click Change advanced power settings. Click the plus sign (+) next to “USB settings” and “USB selective suspend setting” to expand the options and change the setting to Disabled. Click OK to apply the setting. Note: You may need to disconnect and re-connect your USB hub after applying these settings to re-establish the connection.Windows 7 / Vista Click the Start button and select Control Panel. Click Hardware and Sound, then click Power Options. Click Change plan settings for the plan you want to change. Click Change advanced power settings. Click the plus sign (+) next to “USB settings” and “USB selective suspend setting” to expand the options and change the setting to Disabled. Click OK to apply the setting. Note: You may need to disconnect and re-connect your USB hub after applying these settings in order to re-establish the connection.Windows XP On your desktop, right-click the My Computer icon and select Properties. Click the Device Manager tab. Expand Universal Serial Bus controllers by clicking the arrow to the left of it. Right-click the first USB Root Hub device and select Properties. Click the Power Management tab. Clear the box next to Allow the computer to turn off this device to save power. Click OK to apply the setting. Repeat steps 4-7 for any remaining devices in the Universal Serial Bus Controllers section with “Root Hub” in the name. Note: You may need to disconnect and re-connect your USB hub after applying these settings to re-establish the connection.

Modern notebook computers can be left connected to the original power cable or a docking station with charging capability for extended periods, and do not benefit from regular discharge/recharge cycles.  Our docking stations with charging capability rely on USB Type-C Power Delivery to power and charge compatible computers.  USB Type-C Power Delivery is a negotiated charging protocol between the host computer and the docking station or USB Type-C power supply, this allows the computer to draw only the power it requires, and even select the best voltage level for powering the computer.  In combination with a computer's built-in battery charging controller the computer is capable of maintaining the battery's optimal state even when left connected to a power source for an extended period of time.

USBハブカテゴリでサクラ製品は通常製品より41%安く設定し、粗悪品にサクラを使い低価格&高品質にみせかけているので注意が必要です。

Many of our devices that include power adapters, especially USB hubs, will function in either self-powered or bus-powered mode. However, even though the device may function, each additional device attached to the host computer reduces the total available bus power. If the power runs out, any USB device attached to the computer may suddenly disconnect. If this were to happen to a USB storage device, such an event could result in permanent data loss.

表示製品の評価件数が54件でUSBハブカテゴリの合格メーカー平均評価件数が339件。

if we were to change the Wi-Fi connection to a wired Ethernet connection capable of 1Gbps, our performance bottleneck would then become the USB 2.0 connection to the USB drive where the file is stored.

While all USB ports provide some amount of power for attached devices, the available power may not be enough for certain high-current devices such as USB hubs or external hard drives. High-current devices usually come with their own power adapter, making them self-powered, in contrast to a bus-powered device that draws all of its power from the host computer's USB interface. Bus-powered devices can cause issues if they need more power than is available from the host machine.

Bus-powered USB device - A device that takes all of its power from the host computer's USB interface.

If you disconnect a USB-C power input from the multiport USB hub during the transmission of the files to or from an attached storage device, it will stop the transmission and may cause file corruption. It is also possible that there will be a loss of function if the power input is removed from the USB hub while it is in operation. It is important to always follow the disconnection steps listed following: 1. Complete all data transfers over USB to and from the attached storage device. 2. Disconnect the USB hub from the host computer. 3. Disconnect your power input from the USB hub. 4. Eject your attached storage device.

MacBook and Mac Mini using the Apple Silicon chip support only one single external display over the Thunderbolt 3 ports, even when connected to a Thunderbolt 3 hub or adapter with multiple video output. Turning off the laptop display or using clamshell mode does not change this. Using a USB-C DisplayLink-based hub or video adapter may be an option to allow more than one external display with an Apple M1-based Mac device. Note: this limitation does not affect Intel-based Macs with Thunderbolt 3.

Problem:If you are running a browser based speed test such as SpeedTest.net using a Plugable ASIX AX88179A based Ethernet product such as our USBC-7IN1E Hub on macOS 11.6 Big Sur. Example pictured below.

If your USB hub equips the USB Power Delivery (PD) port, you can use it to charge your laptop computer by connecting to a PD power adapter. For more information on what the requirements are and about how much power this laptop docking station provides, refer to the product specifications.