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AC-Si6437HL+S

Sunix SER6437HL 2-port RS-232 High Speed PCI Express Low Profile Board

Sunix - Sunix ser6437HL - Low-profile + Standard dual bracket - 2 port high-speed serial (16c950) RS232, PCI-Express (1x), 128byte hardware + 128k software FiFo, SUN2212 chipset with low power consumption, 921.6 Kbps, 15KV ESD protection + 15KV IEC1000-4-2 Air Gap Discharge + 8KV IEC1000-4-2 Contact Discharge
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Specials
Prices, images and descriptions are for reference purposes only & may change without prior notice. PLEASE RELY ON ABOVE DESCRIPTIONS AND NOT ON IMAGES. AC-Si6437HL+S Sunix SER6437HL 2-port RS-232 High Speed PCI Express Low Profile 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 R866 is valid 2026-09-13, 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.


Please remember these important points when reading the information below this paragraph: Operating systems cannot be removed or changed, monitors are not included with computers, free Anti-virus and Office Software are trial versions or may have limited features and an additional license needs to be purchased to activate the full product.

AC-Si6437HL+S

Sunix SER6437HL 2-port RS-232 High Speed PCI Express Low Profile Board

Sunix ser6437HL - Low-profile + Standard dual bracket - 2 port high-speed serial (16c950) RS232, PCI-Express (1x), 128byte hardware + 128k software FiFo, SUN2212 chipset with low power consumption, 921.6 Kbps, 15KV ESD protection + 15KV IEC1000-4-2 Air Gap Discharge + 8KV IEC1000-4-2 Contact Discharge

About this product

The Sunix SER6437HL is a high-performance dual-port RS232 serial PCI-Express card featuring the SUN2212 chipset. It supports ultra-fast 921.6 Kbps data transfer with 128byte hardware and 128k software FiFo buffers, providing reliable serial communication for industrial and computing applications. Designed with low power consumption and robust ESD protection, it ensures stable operation in demanding environments.

Overview Summary

Sunix SER6437HL Dual-Port Serial PCIe Card

The Sunix SER6437HL offers a low-profile and standard dual bracket design for flexible installation in various systems. Equipped with two high-speed RS232 ports and the SUN2212 chipset, it delivers reliable serial communication at up to 921.6 Kbps. Enhanced with 128byte hardware and 128k software FiFo buffers, it reduces data loss and ensures seamless performance for industrial devices, POS systems, and network equipment.

Its advanced protection features include 15KV ESD protection, 15KV IEC1000-4-2 air gap discharge, and 8KV IEC1000-4-2 contact discharge. With low power consumption, this card is ideal for continuous operation in professional and industrial environments.

What tier does this fall into?

High-performance

What is this best for?

Industrial automation, POS systems, embedded systems, network management, serial communication

Overview

SUNIX SER6437HL, PCI Express serial communication board meets 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 slim size PC-based system with low profile bracket structure. The majorities of today's motherboard 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 SER6437HL card has 128-bytes onboard FIFO buffer and compatible with 16C950 UART specifications. 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 SER6437HL is engineered for stable and high-speed serial communication in industrial and computing environments. The card includes dual RS232 ports with support for up to 921.6 Kbps data rates. Its 128byte hardware and 128k software FiFo buffers help manage data flow efficiently, preventing overflow and ensuring reliable data transfer. The low-profile and standard brackets provide installation flexibility, while the SUN2212 chipset ensures low power usage without compromising performance. ESD and IEC discharge protections safeguard the system from electrical disturbances, making it suitable for critical industrial applications and embedded systems.

Features

  • Dual RS232 ports supporting high-speed communication up to 921.6 Kbps
  • 128byte hardware and 128k software FiFo for reliable data management
  • Low-profile and standard dual bracket design for flexible installation
  • SUN2212 chipset with low power consumption
  • Advanced ESD protection: 15KV ESD, 15KV IEC1000-4-2 Air Gap, 8KV IEC1000-4-2 Contact Discharge
  • Ideal for industrial automation, POS systems, and network devices
  • Compatible with PCI-Express 1x slots

What's in the Box

  • Sunix SER6437HL dual-port RS232 PCI-Express card
  • Low-profile bracket
  • Standard bracket
  • Quick installation guide
  • Driver CD or download instructions

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-Si6437HL+Sspacer
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 2-port
FIFO 128byte Hardware
Signal DCD, TxD, RxD, RTS, CTS, DTR, DSR, GND, RI
Baud rate 50bps ~ 921.6Kbps
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 DB44 Female
Driver Support
Windows Client XP / Vista / 7 / 8 / 8.1 (X86 / X64)
Windows Server 2000 / 2003 / 2008 / 2008 R2 / 2012 / 2012 R2 (X86 / X64)
Windows Embedded Windows CE 4.2 / 5.0 / 6.0
XP Embedded / POSReady 2009 / POSReady 7 / Embedded System
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
Windows Client: XP / Vista / 7 / 8 / 8.1 (X86 / X64)
Windows Server: 2000 / 2003 / 2008 / 2008 R2 / 2012 / 2012 R2 (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 88 mm
Bracket Low Profile 80 mm
Bracket Space 1

FAQ

What is the maximum data transfer rate of the Sunix SER6437HL?

The Sunix SER6437HL supports high-speed serial communication up to 921.6 Kbps, ensuring fast and reliable data transfer for industrial and computing applications.

Which interfaces are included on the Sunix SER6437HL?

This card features two RS232 ports and connects via a PCI-Express 1x interface. It includes both low-profile and standard brackets for flexible installation.

What protections does the Sunix SER6437HL offer?

It offers 15KV ESD protection, 15KV IEC1000-4-2 air gap discharge, and 8KV IEC1000-4-2 contact discharge to safeguard systems against electrical disturbances.

Is the Sunix SER6437HL compatible with Windows and Linux?

Yes, the card supports Windows and Linux operating systems and is compatible with many embedded systems for industrial and commercial use.

What are typical use cases for this serial card?

It is ideal for industrial automation, POS systems, embedded devices, network management, and any application requiring reliable RS232 serial communication.

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