400-20250 - 10 cm (4 in.) USB serial adapter cable.
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Delock Products 87414 Delock USB 2.0 to 4 x serial adapter
Large Selection of USB-RS232 adapters, Easy Installation and Setup of USB RS232 COM ports.
Multi-4/USB RS232 - | Serial Adapter | BRESSNER
USB to serial adapters | Niktips's Blog
Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - DB9M - RS232 Extension - Serial to USB (ICUSB2324) : Electronics
Industrial USB To 4-ch Serial Converter, Original FT4232HL Chip, Supports USB To RS232/485/422/
USB 4-Port Serial Adapter - USB 2.0 to DB-9 Port RS232 with FTDI CHIP - Coolgear
4 Port FTDI USB to DB-9 Serial Cable for Win XP/Vista/7/8 and Linux | Cooldrives
USB to 4-Port RS-232 DB9 Serial Interface Adapter - Sealevel
FTDI Serial USB RS232 Adapter 4 port Din Rail Industrial - Shentek
StarTech.com USB to RS232/RS485/RS422 Industrial 4 Port Serial Hub Adapter - USB to Serial Converter - ICUSB234854I - USB Adapters - CDW.com
4 Port USB to Serial Adapter Hub - China USB to RS232 RS485 Cable and 4 Port USB to Serial Adapter Hub price | Made-in-China.com
4 Port USB Type-C To Serial Adapter with Per port LED Rx / TX Indicators
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13ft 2-Port USB to RS232 Serial Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com Europe
4 Port USB to Serial Adapter - USB-B to DB9 RS485 RS422 | Eaton
4-port USB to Serial RS232 Converter
USB 4-Port Serial Adapter - USB 2.0 to DB-9 Port RS232 with FTDI CHIP - Coolgear
USB to 4 Port Serial Converter - from LINDY UK
4-Port USB to RS-232 Serial Adapter Hub
StarTech 4-Port USB to Serial Adapter Hub with COM ICUSB2324X
USB 4-Port Serial Adapter / USB 2.0 Quad Port Serial DB-9 RS-232
