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AC-Si6427A+L

Sunix SER6427A 1-port RS-232 PCI Express Board

Sunix - Sunix ser6427A - standard + Low-profile dual bracket - 1 port serial (16c950) RS232, pci-Express (1x), 128byte hardware + 128k software FiFo, SUN2212 chipset, 115.2Kbps, 15KV ESD protection + 15KV IEC1000-4-2 Air Gap Discharge + 8KV IEC1000-4-2 Contact Discharge
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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-Si6427A+L Sunix SER6427A 1-port RS-232 PCI Express 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 R380 is valid 2026-11-02, 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-Si6427A+L

Sunix SER6427A 1-port RS-232 PCI Express Board

Sunix ser6427A - standard + Low-profile dual bracket - 1 port serial (16c950) RS232, pci-Express (1x), 128byte hardware + 128k software FiFo, SUN2212 chipset, 115.2Kbps, 15KV ESD protection + 15KV IEC1000-4-2 Air Gap Discharge + 8KV IEC1000-4-2 Contact Discharge

About this product

The Sunix SER6427A is a high-performance PCI-Express serial card featuring a standard and low-profile dual bracket design. It supports 1 port RS232 communication with 16C950 UART, offering 128-byte hardware and 128k software FIFO buffers. With the SUN2212 chipset, data rates reach up to 115.2Kbps, and the card provides advanced ESD protection up to 15KV, ensuring reliable and secure serial connectivity for industrial and professional applications.

Overview Summary

Product: Sunix SER6427A PCI-Express RS232 Serial Card

The Sunix SER6427A is engineered for high-speed, stable serial communication. Its PCI-Express interface ensures fast data transfer, while the dual bracket design supports both standard and low-profile installations. Featuring the SUN2212 chipset and 16C950 UART, this card delivers 128-byte hardware and 128k software FIFO, minimizing data loss and maximizing throughput.

With robust 15KV ESD and IEC1000-4-2 Air Gap and Contact Discharge protection, the SER6427A safeguards connected devices from electrical surges. Ideal for industrial automation, POS systems, and networking equipment, this card guarantees reliable RS232 connectivity even in high-noise environments.

What tier does this fall into?

Professional / Industrial

What is this best for?

Industrial automation, POS systems, networking equipment, legacy device connectivity, serial communication

Overview

SUNIX SER6427A, PCI Express serial communication boards meet the PCI Express Base Specification Revision 2.0. It is compatible with PCI Express x1, x2, x4, x8 and x16 lane Bus allowing it to be installed in any PC-based system. The majorities of today's motherboards is not equipped with serial ports or only have one serial port. With SUNIX PCI Express serial board, users can add one serial port to their system, allowing them to use serial devices further. SUNIX SER6427A card has 128-bytes onboard FIFO buffer and compatible with 16C950 UART specification. It is designed with SUNIX UART controller, SUN2212 and as well built with many of SUNIX advanced features and technologies, making it the best solution for commercial and industrial automation applications.

Description

The Sunix SER6427A serial card combines advanced hardware with robust protection for stable RS232 communication. Its dual bracket design allows compatibility with both standard and low-profile PC slots. The integrated SUN2212 chipset and 16C950 UART enable fast and efficient data transfer with minimal loss, supported by 128-byte hardware and 128k software FIFO buffers. With data rates of up to 115.2Kbps, it is ideal for high-speed applications where reliability is critical.

Enhanced ESD protection up to 15KV and IEC1000-4-2 compliance ensures connected devices remain safe from electrical interference. The card is perfectly suited for industrial automation, POS systems, networking equipment, and legacy device connectivity.

Features

Key features of the Sunix SER6427A include:

  • 1 port RS232 serial communication with 16C950 UART
  • 128-byte hardware FIFO and 128k software FIFO for high-speed data transfer
  • Dual bracket design supports both standard and low-profile PC slots
  • PCI-Express x1 interface for fast and reliable connectivity
  • SUN2212 chipset optimized for industrial performance
  • High-speed communication up to 115.2Kbps
  • Robust ESD protection: 15KV general, 15KV IEC1000-4-2 Air Gap, 8KV Contact Discharge
  • Ideal for industrial automation, POS systems, and networking equipment

What's in the Box

  • Sunix SER6427A PCI-Express RS232 serial card
  • Low-profile bracket
  • Standard bracket pre-installed
  • User manual and installation guide

Specifications

© 2026 Respective owners and brand holders. This table has been carefully researched and generated by Laptop Direct CC (https://www.laptopdirect.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-Si6427A+Lspacer
General
Interface RS-232
Controller SUNIX SUN2212 (16C950 UART Compatible)
BUS PCI Express Spec 2.0, Single-Lane (x1)
IRQ & IO Assigned by System
Serial Communication
Interface RS-232
No. of Port 1-port
FIFO 128byte Hardware
Signal DCD, TxD, RxD, RTS, CTS, DTR, DSR, GND, RI
Baud rate 50bps ~ 115.2Kbps
Stop bit 1, 1.5, 2
Parity even, odd, none, mark, space
Flow Control None, Xon/Xoff, RTS/CTS
Protection ±15KV ESD protection for each signal Human Body Model (HBM)
±15KV IEC1000-4-2 Air Gap Discharge
±8KV IEC1000-4-2 Contact Discharge
PCB Connector DB9 Male
Driver Support
Microsoft Client XP/Vista/7/ 8 (X86/X64)
Microsoft Server 2000/2003/2008 / 2008R2 (X86/X64)
Microsoft Embedded Windows CE4.2/5.0/6.0 / XP Embedded / POS Ready 2009 /
Embedded System 2009
Linux Linux 2.4.x/2.6.x/3.x
DOS DOS
FreeBSD FreeBSD 5.3~5.5 / 6.0~6.4
QNX QNX 6.3.2/6.4.0
Regulatory Approvals
Hardware CE EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, VCCI Class B
FCC Part 15 Class B, BSMI: CNS13438, C-Tick: CISPR22 AS/NZS, RoHS
Software Microsoft WHQL Windows
Microsoft Client: XP / Vista / 7 / 8 (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 65 x 52 mm
Bracket Standard 121 mm
Bracket Space 1

FAQ

Q: What devices can I connect using the Sunix SER6427A?

A: The SER6427A supports RS232 communication and can connect industrial machines, POS systems, networking equipment, and legacy serial devices.

Q: Is the card compatible with both standard and low-profile PC slots?

A: Yes, the card comes with a dual bracket design, allowing installation in both standard and low-profile slots.

Q: What level of ESD protection does this card provide?

A: It provides 15KV ESD protection, 15KV IEC1000-4-2 Air Gap Discharge, and 8KV IEC1000-4-2 Contact Discharge, ensuring reliable device safety.

Q: What operating systems are supported?

A: The card supports Windows, Linux, and other operating systems compatible with PCI-Express x1 interfaces.

Q: What is the maximum data rate?

A: The Sunix SER6427A supports data transfer rates up to 115.2Kbps, suitable for high-speed serial communication.

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