Does this lenovo tb4 dock have realtek 8153 or intel i225 ethernet?

The circuit board appears to have both Realtek 8153 and Intel i225 chips. When connected to a Surface Pro 8 or Surface Laptop Studio, only the Realtek Ethernet device appears in device manager. The Intel i225 is nowhere to be found. Connecting the Dock to other laptops may result in different behavior.

Funciona con lenovo e15?

The item is compatible with the following E15 Lenovo models: E15 G4-21E6 - E15 Gen 4 and E15 G4-21E7 - E15 Gen 4.

My laptop is giving me a charging error when I reboot while connected to the dock. Is this normal?

There could be a few reasons why this is happening. The 1st being a compatibility error, I am sure you checked compatibility before buying. The 2nd is that a driver or utility update is needed, these are free downloads on Lenovo sight. The 3rd being a loose ac connection. The 4th being an internal error with your laptop due to a MS Windows update. If you have an external battery, turn off your system, remove and re-install the external battery. If not, be sure that the update was fully installed. Supported OS:Win10 64 bit, Win 11 64 bit. The last issue would be that you received a non-USA version of 40B00135US. The USA version has the suffix "US" on the part # (suffix with : UK, CN, AS, ect ect are all docks made for a different country). Always be sure to received USA Product, 40B00135US, UPC 195348677271, the original Lenovo USA packaging should be present and it needs to be sealed with the Red Lenovo authenticity seal. Dock Drivers https://pcsupport.lenovo.com/us/en/accessories/pd500503

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1 x Cable Meet all your needs. - Take your productivity to new heights with a single Thunderbolt cable. Add 8K@30Hz display or up to 4 4K@60Hz displays, super fast 40Gbps transfer rate, vPro pass-through support, enhanced dynamic power charging up to 100W ThinkPad Universal Thunderbolt 4 Dock can do it all
Compatibility: Unlimited - Freedom is the key to productivity. That's why the ThinkPad Thunderbolt 4 Dock has been designed to fit endlessly. Supports Thunderbolt 3 and 4, USB 4, USB-C Windows based systems up to 100W PD for unparalleled performance
Remote Management Smarter - Remote Dock Management Smarter Thanks to Dock Manager and the latest hardware, the end user can perform firmware updates without interruption, and won't compromise productivity
Video Port: 2 x DisplayPort 1.4, 1 x HDMI 2.1, Thunderbolt 4 Downstream Port: USB 3.1 Gen 2*(1 x constant on), 1 x USB-C Audio: 1 x 3.5mm Combo Audio Jack, Network: 1 x RJ45 Gigabit Ethernet
Power Supply: 1 x Slim Chip 135W Power Adapter, Maximum 100W Dynamic Power Charging for Notebook

Smarter way to work Our ThinkPad® Universal Thunderbolt™ 4 dock is designed to expand to a new field of view. It creates the next generation of Intel® Thunderbolt™ technology and is packed with breakthrough features such as 8K @ 30Hz display, Intel® vPro® function supports... smart remote management, and dynamic power charging up to 100W. The ThinkPad Universal Thunderbolt™ 4 Dock is the pinnacle of premium docking.

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Total Usb Ports	5
Compatible Devices	Lenovo ThinkPad
Color Name	Black
Batteries Included	No
Batteries Required	No
Brand	Lenovo
Manufacturer	Lenovo
Item Model Number	40B00135UK
Operating System	Windows, macOS
Special Features	Not in use
Connectivity Technology	Ethernet, HDMI, USB, USB Type C
Size	1.18" x 3.15"
Material	No Information
Product Dimensions	15.24 x 7.62 x 2.54 cm; 526.17 g
Item Weight	526 g

Lenovo ThinkPad Universal Thunderbolt 4 Dock, 4 Display, Dynamic Power Charging up to 100W, Black

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