Amazon.com: StarTech.com USB to Serial Adapter - 1 Port - COM Port Retention - Texas Instruments TIUSB3410 - USB to RS232 Adapter Cable (ICUSB2321X),Black : Electronics
Dual Port USB Adapter – NOCQUA Adventure Gear
Dual Port USB Power Adapter | Garmin
USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable - Sabrent
7 Port USB Hub for Laptop Computer Adapter, Multiport 2.0 Charger Splitter with On Off Switches for Windows PC Smartphone Charging Data Transfer - Walmart.com
High Speed 4 Port USB 3.0 Multi Hub Splitter Expansion USB Hub for Desktop PC Laptop Adapter - Walmart.com
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
Gigabit Ethernet Adapter USB-C Male to USB A Female x 3, RJ45 Black
Plugable USB 2.0 7-Port Hub with 60W Power Adapter – Plugable Technologies
4-Port USB Hub For Wally® - 21671 | DISH For My RV
StarTech.com 1 Port FTDI USB to Serial 232 Adapter Cable COM Retention - ICUSB2321F - Serial Cables - CDW.com
4 Port Professional RS-232 USB 2.0 to Serial Adapter
4-Port USB to RS-232 Serial Adapter Hub
Insten 4-port Black New Usb 2.0 Hi-speed Splitter Hub Adapter For Pc Computer Notebook, 1 : Target
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
Large Selection of USB-RS232 adapters, Easy Installation and Setup of USB RS232 COM ports.
7-ports USB 2.0 Hub with Power Adapter | CarPC | Custom Computers | Desktop PC | Carputer | Gaming PC
C2G USB-C to Ethernet Adapter with 3-Port USB Hub - Black | Dell USA