AC-SiUTM1925

Overview:

No longer would the usage of a serial or printer device be restricted by the availability of the connectable ports on the desktop, laptop or work station system. With SUNIX ComHub USB Adapter, users now have the ability to convert the connection of their serial and parallel peripherals into USB (Universal Serial Bus) compatible. The adapter is compatible with both USB 2.0 and 1.1 specifications. The USB Full Speed connection offers data transfer rate up to 12Mbps. SUNIX ComHub provides serial ports with transfer speed up to 120Kbps and the printer (LPT) port supports SPP mode .

SUNIX ComHub, USB to I/O Adapter utilized the high quality Prolific chipset, not only is the ComHub has passed the WHQL certification, it is also the most compatible and the most reliable. ComHub series come with the choice of 1/2/4 ports in RS-232 or Printer (LPT) for connection with devices such as barcode scanner, POS device, PDA, printer, and other mobile devices. SUNIX offers the most complete line of USB to I/O Adapter for all your connection needs.

Features:

• Expands 1-port RS-232 & 1-port Printer Adapter on system via USB connection.
• Supports Universal Serial Bus Plug-n-Play and Hot-Swapping feature.
• No IRQ, DMA, I/O address resource required.
• Supports USB 1.1 full speed 12Mbps, and it is USB 2.0 compatible.
• Each serial port provides transmission rate up to 120Kbps.
• Built-in ±15KV ESD protection for all serial signals.
• Plug-n-Play, I/O address and IRQ assigned by BIOS.
• Certified by CE, FCC, VCCI, BSMI, and RoHS.
• Support Microsoft Windows and Linux.

Specifications:

© 2026 Respective owners and brand holders. This table has been carefully researched and generated by ComXpert International CC (//www.comx-computers.co.za), however, errors and omissions may occur. Only references to South Africa apply. All products are sourced in South Africa from the official suppliers and the warranty is that of the local supplier. E&OE. This table and our site's content may be used on condition that this notice and link remains intact and unaltered.
Specifications and features
Product Code	AC-SiUTM1925
Description
Product Description	USB to USB to 1-port RS-232 & 1-port Printer Adapter
Serial Communication
Interface	RS-232
Controller	Moschip MCS7715 16C550 UART Compatible
Bus Interface	Universal Serial Bus (USB) 2.0 / 1.1
No. of Port	1-port
IRQ & IO	Assigned by System
FIFO	16 byte (Hardware)
Signal	TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND, RI
Baud rate	50 bps to 120 Kbps
Data bit	5, 6, 7, 8
Stop bit	1, 1.5, 2
Parity	None, Even, Odd, Space, Mark
Flow Control	RTS/CTS (Hardware), XON/XOFF(Software)
Protection	±15KV ESD protection for each signal Human Body Model (HBM)
Board connector	DB9 Male
Printer Communication
No. og port	1-port
Mode	SPP Mode (Support Printer only)
Cable connectors	DB25 Female
ESD Protection for Parallel I/O	±2KV Human Body Model (HBM)
Driver Support
Microsoft	Microsoft Windows 98/ME/2000/XP/ 2003/Vista (32bit) Microsoft Windows CE5.0
Linux	Linux 2.4.x
Regulatory Approvals
Hardware	CE, FCC, VCCI, BSMI
Software	Microsoft WHQL Window XP
Environment
Operating Temperature	0 to 60 °C ( 32 to 140 °F )
Operating Humidity	5% to 95% RH
Storage Temperature	-20 to 85 °C ( -4 to 185 °F )
Power
Input	USB Bus-power
Consumption	<1W = 5V x 200mA
Mechanical
Dimension	75 (W) x 40 (D) x 22 (H) mm
Cable Length	1500mm (5ft)
Case	ABS
Weight	140 ± 5 g