4-port StarTech.com 4 Port USB 2.0 Hub - USB Bus Powered - Portable Multi Port USB 2.0 Splitter and Expander Hub - Sm... | Dell USA
USB to 4-Port RS-232 DB9 Serial Interface Adapter - Sealevel
8-Port USB to RS-232 Serial Adapter Hub
Amazon.com: USB Hub 3.0 Extra USB Ports for Laptops - PC USB Extension Cable 4 Multiple USB Port for Laptop USB Port Expander USB Adapter - Computer Networking Hubs Gaming Accessories 3.0
4-Port USB 3.0 Hub Adapter with USB-C PD 3.0
Plugable USB 2.0 7-Port Hub with 60W Power Adapter – Plugable Technologies
4-in-1 USB 3.0 Ethernet Hub with USB-C Adapter
Amazon.com: USB 3.0 to Ethernet Adapter,ABLEWE 3-Port USB 3.0 Hub with RJ45 10/100/1000 Gigabit Ethernet Adapter Support Windows 10,8.1,Mac OS, Surface Pro,Linux,Chromebook and More : Electronics
HP USB to Serial Port Adapter J7B60AA B&H Photo Video
4 Port Professional RS-232 USB 2.0 to Serial Adapter
StarTech.com 1 Port USB to RS232 DB9 Serial Adapter Cable - M/M - ICUSB232V2 - Serial Cables - CDW.com
C2G USB-C to Ethernet Adapter with 3-Port USB Hub - Black | Dell USA
USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable - Sabrent
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 :
USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
Amazon.com: USB Hub 3.0, uni 4-Port USB Splitter for Laptop, Ultra-Slim Multiple USB Port Expander Compatible with Keyboard and Mouse Adapter, PC, MacBook Air, Mac Pro, iMac, Surface Pro, Flash Drive, Mobile
USB 3.0 HUB 3 0 HUB Multi USB Splitter 4/7 Port Expander Multiple USB 2.0 Hab Power Adapter USB3.0 Hub with Switch For PC Home - AliExpress
Dual Port USB Adapter – NOCQUA Adventure Gear
5-Port USB Wall Charger - AC to USB Adapter, 5V 8A Output | USB Chargers and Power Adapters | USB Cables, Adapters, and Hubs | USB and PC
Insten 7-Port USB Hub Port 2.0 High Speed with ON / OFF Switch Adapter
1 Port USB 2.0 to Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
4-Port USB-A to Serial DB9 Adapter, Keyspan | Eaton
