Multiport Adapter USB-A to USB-A (3x) Hub with Gigabit Ethernet
uni® USB C Hub w/ USB C, Multi-port USB Adapter | 1G Ethernet | 100W PD | 4K HDMI
Gigabit Ethernet Adapter USB-C Male to USB A Female x 3, RJ45 Black
Amazon.com: StarTech.com USB to Serial Adapter - 1 Port - COM Port Retention - Texas Instruments TIUSB3410 - USB to RS232 Adapter Cable (ICUSB2321X),Black : Electronics
HP USB to Serial Port Adapter J7B60AA B&H Photo Video
USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
Dual Port USB Adapter – NOCQUA Adventure Gear
4 Port Professional RS-232 USB 2.0 to Serial Adapter
USB 3 to Gigabit Network Adapter & Hub - USB and Thunderbolt Network Adapters | StarTech.com
Amazon.com: vantisan USB Hub 3.0 Powered, 7 Ports USB Data Hub Splitter with One Smart Charging Port and 5V/4A Powered Adapter and ON/Off Switches for MacBook, Mac Pro/Mini, iMac, Surface Pro Laptop/PC :
8-Port USB to RS-232 Serial Adapter Hub
USB Mini Hub, 2-port — Sewell Direct
Amazon.com: USB Hub 3.0 Extra USB Ports for Laptops - USB Extension Cable Multiple Port for Laptop Accessories Gaming, PC Accessories, iMac USB Adapter - 4 Multiport USB Hub Computer Networking Hubs
Single Port USB 2.0 to RS-422 / RS-485 DB-9 Serial Adapter - Coolgear
Plugable USB 2.0 7-Port Hub with 60W Power Adapter – Plugable Technologies
2-Port Professional RS-232 USB 2.0 to Serial Adapter 5ft.
Monoprice Select Series USB-C 3-Port USB 3.0 Hub and Gigabit Ethernet Adapter - Monoprice.com