The Sunix SER5466HL is a low-profile PCI-Express serial expansion card designed to add 8 high-speed RS232 ports to modern systems. Built on the SUN1999 chipset with a 16C950 controller, it delivers reliable multi-port serial communication with large hardware and software FIFO buffers, strong ESD protection, and stable performance for industrial and commercial applications.
Sunix SER5466HL 8 Port PCI-Express RS232 Serial Card
The Sunix SER5466HL provides a dependable solution for systems that require multiple RS232 serial connections. With 8 independent ports operating at speeds up to 921.6k bps, this PCI-Express card is suitable for demanding environments where stable data transmission is critical.
Its low-profile design with an included standard dual bracket ensures compatibility with both compact and full-height chassis. Advanced buffering with 128 byte hardware FIFO and 128k software FIFO improves throughput while reducing CPU load, making it ideal for continuous operation in professional installations.
Performance tier: Professional
Uses: Industrial automation, POS systems, instrumentation, factory equipment, serial device integration, legacy hardware support
SUNIX SER5466HL, PCI Express serial communication boards meet the PCI Express Base Specification Revision 1.1. 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 motherboards is not equipped with serial ports or only have one serial port. With SUNIX PCI Express serial board, users can add eight serial ports to their system, allowing them to use serial devices further. SUNIX SER5466HL card has 128-bytes onboard FIFO buffer and compatible with 16C950 UART specification. It is designed with SUNIX UART controller, SUN1999 and as well built with many of SUNIX advanced features and technologies, making it the best solution for commercial and industrial automation applications.
The Sunix SER5466HL is engineered for professionals who require stable and scalable serial connectivity. Using a PCI-Express interface, it integrates seamlessly into modern systems while maintaining compatibility with legacy RS232 devices. The SUN1999 chipset and 16C950 controller ensure consistent performance and efficient power consumption.
Designed for continuous operation, the card features advanced ESD protection with support for up to 15KV air gap discharge and 8KV contact discharge, helping safeguard connected equipment in electrically noisy environments. Its dual bracket design allows easy installation in both low-profile and standard desktop systems.
The SER5466HL combines performance, reliability, and flexibility for professional serial communication needs.
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Specifications and features | |
| Product Code | AC-Si5466HL+S |
| Serial Communication | |
| Interface | RS-232 |
| Controller | SUNIX SUN1999 (16C950 UART Compatible) |
| Bus | PCI Express one lane (x1) |
| No. of Port | 8-port |
| IRQ & IO | Assigned by System |
| FIFO | 128 byte (Hardware) |
| Signal | TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND |
| Baud rate | 50 bps to 921.6 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 | ±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 | SCSI 68 Female |
| Driver Support | |
| Microsoft Client | Windows XP/Vista/7 (X86/X64) |
| Microsoft Server | Windows 2000/2003/2008 (X86/X64) |
| Microsoft Embedded | Windows CE4.2/5.0/6.0/XP Embedded/POS Ready 2009/Embedded System 2009/Embedded Standard 7 |
| 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 |
| * IBM OS/2 | WARP 3/WARP 4 |
| * SCO UnixWare | UnixWare 7.1.3/7.1.4/ Open Server 5.0.7/6.0 |
| * Sun Microsystems | Solaris 10 |
| 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 | - |
| Bracket | Low Profile 80 mm |
| Bracket Space | 1 |
This card is compatible with desktop systems that support PCI-Express expansion slots and require RS232 serial connectivity.
The SER5466HL supports RS232 devices such as industrial controllers, POS systems, measurement instruments, and legacy communication equipment.
Yes, it includes high-level ESD protection and stable buffering, making it suitable for continuous operation in industrial and commercial environments.
Yes, the package includes both a low-profile bracket and a standard dual bracket for flexible installation.
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