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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⚡ Elevate your desk game with power, speed, and stunning visuals!

VISUAL MASTERY - Expand your view with support for up to four 4K monitors or a stunning 8K display—perfect for multitasking pros.
POWER THAT KEEPS UP - Dynamic 100W charging ensures your laptop stays powered without missing a beat during intense work sessions.
SEAMLESS COMPATIBILITY - Works effortlessly with Thunderbolt 3/4, USB4, and USB-C Windows systems for ultimate flexibility.
REMOTE MANAGEMENT READY - Stay in control with firmware updates and device management that won’t interrupt your productivity flow.
ONE CABLE TO RULE THEM ALL - Simplify your workspace with a single Thunderbolt 4 cable powering multiple 4K displays and ultra-fast data transfer.

The Lenovo ThinkPad Universal Thunderbolt 4 Dock is a premium docking station designed for professionals seeking maximum productivity. It supports up to four 4K displays or a single 8K display, delivers blazing 40Gbps data transfer speeds, and offers dynamic power delivery up to 100W. Compatible with Thunderbolt 3/4 and USB-C devices, it also features smart remote management for seamless firmware updates, making it the ultimate all-in-one docking solution for modern workspaces.

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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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