
*Update* After I wrote the following post, Cable Matters contacted me, helped me solve my problem, and shipped me a new unit. 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.

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

π Sabrent USB Type-C Hub with 4k HDMI, 60W Power Delivery, 1 USB 3.0 Port, 2 USB 2.0 Ports (HB-TC5P) - Multi-Port
10 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

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

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

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

π USR-TCP232-410s: RS232/RS485 Serial to Ethernet Adapter/IP Device Server with DHCP/DNS Support
4 Review

Smartphone Nubia Z11 6/64GB
12 Review