
*Update* After I just wrote the following post, Cable Matters contacted me, helped me solve my problem and sent me a new device. I am very satisfied with their service and my new center. It works very well. The USB ports work fine, but the SD card reader keeps rebooting while the memory card is inserted. I tried several memory cards and had the same problem. I ended up replacing the product with another one and encountering the same problem. Now I use the device exclusively as a USB hub and it works fine with my old memory card readers, I just don't use this device anymore.

VEMONT 7-Port USB Hub 3.0 with Individual On/Off Switches, LED Light, and 4ft/1.2m Long Cable - USB Splitter Extension for Laptop and PC Computer
9 Review

π uni USB C Hub with Ethernet Adapter, 4K HDMI, Gigabit Ethernet, and 3 USB 3.0 Ports for MacBook Pro, iPad Pro, XPS
11 Review

HB-UMLS Sabrent USB 2.0 Hub with 4 Ports and LED Power Switches for Each Port
12 Review

UGREEN USB 3.0 Ethernet Adapter Hub with RJ45: Fast Gigabit Ethernet Converter, 3 Ports USB 3.0 Hub Compatible for MacBook, iMac, Surface Pro, Chromebook, Laptop, PC
11 Review

Verizon Wireless Jetpack 4G LTE Advanced Mobile Hotspot - Novatel 7730L
7 Review

π StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
4 Review

Smartphone ZTE Blade A7 (2020) 2/32 GB, Dual nano SIM, blue
79 Review

π CERRXIAN RS232 to Ethernet Serial Device Server - TCP/IP Converter with 1Port DB9 RS232 Serial to Ethernet Connectivity
3 Review