If this had 10Gbit Ethernet it would be perfect. Can you please make this someday?

10Gb Ethernet would add substantial cost to this devices. It would also make it larger and cooling would become a bigger factor. It's going to be several years before you see docks with that level of networking.

First monitor connected with hdmi to hdmi works fine. 2nd monitor -- connected downstream usb c port with a usb c to hdmi cord. no signal. thoughts?

USB C and Thunderbolt are very different. You have to check the connections. I believe that the second monitor must be Thunderbolt

Does the hdmi port support a single 3840x1600@120hz?

I don’t think so. This is the answer i got from their website. How many external displays can this dock support and what are the maximum resolutions? This dock supports connection to two external monitors—one connected via the HDMI 2.0 port, and another via the USB-C Thunderbolt 3 downstream port. You can also connect to a third monitor by connecting a USB-C to dual HDMI adapter to the Thunderbolt 3 downstream port. Below are the maximum resolutions: 1) Single monitor: 5K (5120 x 2880 @ 60Hz) via the Thunderbolt 3 downstream port; 4K (4096 x 2160 @ 60 Hz) via the HDMI port. 2) Dual monitor: 4K (4096 x 2160 @ 60 Hz) via the Thunderbolt 3 downstream port and HDMI port. 3) Triple monitor: 4K (4096 x 2160 @ 60 Hz) via the HDMI port; 2 × 4K@30Hz via the Thunderbolt 3 downstream port using a USB-C to dual HDMI adapter.

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Anker 577 Docking Station (13-in-1, Thunderbolt 3) 85W Charging for Laptop, 18W for Phones, 4K Dual Display, 10 Gbps USB-C Data, Ethernet, Audio, SD 4.0

Product ID: 207783406

Details

Brand
Anker
Color
Silver
Compatible Devices
Card Readers
Hardware Interface
Ethernet HDMI
Item Weight
1.1 pounds
Number of Ports
13

⚡85W Thunderbolt 3 charging power

🔗13 versatile ports for ultimate connectivity

🖥️Dual 4K@60Hz display support

Description

⚡ Power up your productivity with the ultimate 13-in-1 dock!

COMPACT DESK ZEN - Sleek, minimal footprint that transforms your chaotic desk into a clean, efficient command center.
DUAL 4 K DISPLAYS - Expand your visual real estate with crystal-clear 5K and 4K output on two monitors for maximum productivity.
POWERHOUSE CHARGING - Deliver up to 85W to your laptop and 18W to your phone simultaneously—stay juiced without the clutter.
ONE CABLE TO RULE THEM ALL - Simplify your workspace with a single Thunderbolt 3 cable powering and connecting all your devices seamlessly.
ALL IN ONE CONNECTIVITY HUB - 13 ports including USB-C, USB-A, HDMI, Ethernet, SD/microSD, and audio jack to handle every peripheral you own.

The PowerExpand Elite 13-in-1 Thunderbolt 3 Dock by Anker is a compact, high-performance docking station designed for Windows and non-M1 MacBooks. It features dual Thunderbolt 3 ports, multiple USB-C and USB-A ports, HDMI, Ethernet, SD/microSD slots, and a 3.5mm audio jack. Supporting up to 85W laptop charging and dual 4K displays at 60Hz, it consolidates all your peripherals into one sleek hub, eliminating desk clutter and boosting workflow efficiency.

Specifications

ASIN	B087219P5J
Best Sellers Rank	#38,392 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #1,397 in Laptop Docking Stations
Brand	Anker
Color	Silver
Compatible Devices	Card Readers, Laptops
Customer Reviews	4.1 4.1 out of 5 stars (1,435)
Hardware Interface	Ethernet, HDMI, Thunderbolt, USB
Item Dimensions L x W x H	3.5"L x 1.6"W x 4.9"H
Item Weight	1.1 pounds
Manufacturer	Anker
Mfr Part Number	A8396141
Model Number	A8396141
Number of Items	1
Number of Ports	13
Total Number of HDMI Ports	1
Total Usb Ports	6
UPC	194644031848
Warranty Description	18-month warranty
Wattage	85 watts

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