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AC-Si5499A

Sunix MIO5499A 4-port RS-232 & 1-port Parallel PCI Express Multi-I/O Board

Sunix - Sunix Mio5499A - 4 port serial (16c550) + 1 port parallel (SPP/ BPP/ ECP/ EPP), (2 slots required), PCI-express (1x), 128+16byte hardware + 128k software FiFo, ready for 64 bit system, sun1999 chipset, 115.2Kbps+1.8Mbps, 2KV ESD protection
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Prices, images and descriptions are for reference purposes only & may change without prior notice. PLEASE RELY ON ABOVE DESCRIPTIONS AND NOT ON IMAGES. AC-Si5499A Sunix MIO5499A 4-port RS-232 & 1-port Parallel PCI Express Multi-I/O Board is available from Laptop Direct and it is sold as new from our Multi-I/O PCI-Express interface range of products. For reference purposes, the price of R1055 is valid 2026-09-06, and while stocks last, may be valid until . The price displayed is a guide for reference purposes only, and may change without prior notice. Reference prices are an invitation for potential buyers to make an offer to purchase, which we may reject without reason. A quote with final pricing is sent before a purchase can be made. T&C's apply. E&OE. Laptop Direct. You are looking at products found in the Multi-I/O PCI-Express interface category.
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Specification for the entire series

Important information: Kindly note that specifications differ between models. Features, options and accessories displayed below this paragraph are not included with this product unless it has been specified in the above description.


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AC-Si5499A

Sunix MIO5499A 4-port RS-232 & 1-port Parallel PCI Express Multi-I/O Board

Sunix Mio5499A - 4 port serial (16c550) + 1 port parallel (SPP/ BPP/ ECP/ EPP), (2 slots required), PCI-express (1x), 128+16byte hardware + 128k software FiFo, ready for 64 bit system, sun1999 chipset, 115.2Kbps+1.8Mbps, 2KV ESD protection

About this product

The Sunix Mio5499A PCI-express expansion card adds 4 serial ports and 1 parallel port to modern systems, delivering reliable legacy device connectivity with hardware and software FIFO buffering, high speed data transfer, and robust ESD protection for industrial and commercial environments.

Overview Summary

Sunix Mio5499A PCI-express Multi I-O Expansion Card

The Sunix Mio5499A is a professional PCI-express I-O expansion solution designed for systems that require stable and long term support for serial and parallel devices. It provides 4 x RS232 serial ports based on the 16C550 standard, along with 1 x parallel port supporting SPP, BPP, ECP, and EPP modes.

Built on the Sunix SUN1999 chipset, this card supports 64 bit operating systems and delivers dependable performance for industrial automation, POS systems, measurement equipment, and legacy peripherals. Advanced FIFO buffering and integrated ESD protection ensure data integrity and system stability in demanding environments.

What tier does this fall into?

Industrial

What is this best for?

industrial automation, POS systems, legacy device connectivity, serial communication, parallel printers, laboratory equipment

Overview

The majority of today´s motherboards are not equipped with any RS-232 or parallel port. With SUNIX MIO5499A Multi I/O board, users can expand four RS-232 and one IEEE1284 parallel ports to their system, allowing them to use serial and parallel devices further. SUNIX MIO5499A is compatible with PCI Express x1, x2, x4, x8 and x16 lane and PCI/PCI-x Bus, allowing the board to be installed in virtually any PC system. Furthermore, SUNIX MIO5499A Multi-IO card supports majority of the OS on the market. We provide driver support for Microsoft Windows 32/64-bit platform, Linux, making it the best and most economical solution for commercial and industrial applications.

Description

The Sunix Mio5499A is engineered to extend the lifespan and usability of serial and parallel based hardware in modern PCI-express systems. By combining multiple communication ports on a single PCIe x1 card, it reduces system complexity while maintaining compatibility with a wide range of legacy devices.

Its 16C550 compatible serial controllers support standard baud rates up to 115.2 Kbps and high speed operation up to 1.8 Mbps. Hardware and software FIFO buffering improves data flow efficiency, reducing CPU load and minimizing transmission errors. With integrated 2 KV ESD protection, the Mio5499A is suitable for electrically noisy or mission critical installations.

Features

This expansion card is designed for professional environments that require stability, compatibility, and long term availability.

  • 4 x RS232 serial ports based on the 16C550 standard
  • 1 x parallel port supporting SPP, BPP, ECP, and EPP modes
  • PCI-express x1 interface requiring 2 slots
  • 128 byte hardware FIFO plus 128 KB software FIFO buffering
  • Supports 64 bit operating systems
  • Sunix SUN1999 chipset for reliable performance
  • Serial data rates up to 115.2 Kbps and 1.8 Mbps
  • Integrated 2 KV ESD protection on all ports

What's in the Box

  • Sunix Mio5499A PCI-express expansion card
  • Driver media or download instructions
  • User installation guide

Specifications

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Specifications and features
Product Code AC-Si5499Aspacer
Description
Product Description 4-port RS-232 & 1-port Parallel PCI Express Multi-I/O Board
General
Interface RS-232 and IEEE1284
Controller SUNIX SUN1999 (16C950 UART Compatible)
Bus PCI Express one lane (x1)
IRQ & IO Assigned by System
Serial Communication
Interface RS-232
No. of Port 4-port
FIFO 128 byte (Hardware)
Signal TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND, RI
Baud rate 50 bps to 115.2 Kbps
Data bit 5, 6, 7, 8
Stop bit 1, 1.5, 2
Parity None, Even, Odd, Space, Mark
Flow Control None, Xon/Xoff, RTS/CTS
Protection ±2KV ESD protection for each signal Human Body Model (HBM)
PCB connector DB44 Female
Cable Connector DB9 Male
Parallel Communication
Interface IEEE1284
No. of Port 1-port
FIFO 16 byte (Hardware)
Signal SPP/ECP/EPP/BPP
Speed Maximum 1.8MBps
PCB connector 13x2 Pin Header
Cable Connector DB25 Female
Driver Support
Microsoft Client Windows XP/Vista/7 (X86/X64)
Microsoft Server Windows 2000/2003/2008 (X86/X64)
Microsoft Embedded Windows XP Embedded/POS Ready 2009/Embedded System 2009/Embedded Standard 7
Linux Linux 2.4.x / 2.6.x
DOS DOS
Regulatory Approvals
Hardware EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, FCC Part 15 Class B, BSMI: CNS13438, C-Tick: CISPR22 AS/NZS, RoHS
Software Microsoft WHQL Windows
Microsoft Client: XP/Vista/7 (X86/X64)
Microsoft Server: 2000/2003/2008 (X86/X64)
Environment
Operation Temperature 0 to 60degreesC (32 to 140degreesF)
Operation Humidity 5 to 95% RH
Storage Temperature -20 to 85degreesC (-4 to 185degreesF)
Dimension
PCB Dimension 116 x 69 mm
Bracket Standard 121 mm
Bracket Space 2

FAQ

What devices are compatible with the Sunix Mio5499A?

The card is compatible with RS232 serial devices such as barcode scanners, industrial controllers, modems, and POS equipment, as well as parallel devices like legacy printers.

It is designed for professional environments where long term legacy device support is required.

Does this card work with modern 64 bit operating systems?

Yes, the Sunix Mio5499A is fully ready for 64 bit operating systems when used with supported drivers.

This makes it suitable for modern workstations and industrial PCs.

What is the benefit of FIFO buffering?

FIFO buffering improves data transfer stability by managing data flow between the device and the system.

This reduces CPU load and minimizes communication errors, especially at higher data rates.

Is this card suitable for industrial use?

Yes, the card includes 2 KV ESD protection and a proven Sunix chipset.

These features make it suitable for electrically noisy and mission critical environments.

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