The Sunix 5027D is a high-performance 1-port serial PCI card featuring a standard and extra low-profile dual bracket design. It supports 32/64bit 3.5/5V PCI slots and delivers reliable data transfer up to 115.2Kbps, making it ideal for industrial and legacy system integration. With 32-byte hardware and 128k software FiFo buffers, UL7512EQ chipset, and 2KV ESD protection, it ensures stable and secure serial communication across DOS and Windows 9x/NT systems.
Product: Sunix 5027D PCI Serial Card
The Sunix 5027D PCI serial card offers a robust solution for users needing reliable serial communication on modern and legacy systems. Its dual bracket design allows installation in both standard and low-profile slots. The card integrates a 1-port serial interface with a 16c550 UART, supported by a 32-byte hardware and 128k software FiFo buffer for efficient data handling.
Equipped with the Sunix UL7512EQ chipset, this card supports high-speed communication up to 115.2Kbps. Advanced features include legacy ISA address re-mapping (2E8, 3E8, 2F8, 3F8) and 2KV ESD protection, ensuring stability and safety for critical applications. Perfect for industrial systems, POS terminals, and legacy computing environments.
Performance tier: Professional / Industrial grade
Uses: Industrial automation, POS systems, legacy computing, serial device integration, DOS/Windows 9x/NT applications
SUNIX SER5027D, Universal PCI serial communication board, allows users to add or expand one RS-232 port on PC-based system. The card is compatible with both 64 / 32-bit PCI architecture supporting 3.3 and 5V Bus, allowing it to be installed in any slim size PC-based system with low profile bracket structure. SUNIX SER5027D card has 32-bytes onboard FIFO buffer and compatible with 16C650 UART specification. Besides users can remap to legacy ISA address 2E8, 3E8, 2F8, 3F8 address under DOS and Win9x/NT O.S. SUNIX GoldenIO card series is designed with SUNIX UART controller, UL7512EQ 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 5027D PCI serial card is designed for seamless integration in both modern and legacy systems. Its dual bracket allows for flexible installation in standard and low-profile PCI slots. The card features a 1-port serial interface capable of 115.2Kbps communication, making it suitable for industrial machines, POS devices, and other legacy hardware requiring serial connectivity. Hardware and software FiFo buffers optimize data throughput, while the UL7512EQ chipset ensures precise signal handling. With legacy ISA address mapping and robust 2KV ESD protection, this PCI card guarantees secure and reliable operation under demanding conditions.
Key features of the Sunix 5027D PCI serial card include:
| © 2026 Respective owners and brand holders. This table has been carefully researched and generated by ComXpert International CC (//www.comx.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-Si5027D+L![]() |
| Serial Communication | |
| Interface | RS-232 |
| Controller | SUNIX UL7512EQ (16C650 UART Compatible) |
| BUS | Universal PCI 64 / 32bit 3.3V / 5V PCI Ver 3.0, 2.3, 2.2, 2.1 |
| No. of Port | 1port |
| IRQ & IO | Assigned by System |
| FIFO | 32byte 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 | ±2KV ESD protection for each signal Human Body Model (HBM) |
| PCB Connector | DB9 Male |
| 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 |
| 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 | 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 | 120 x 52 mm |
| Bracket | Standard 121mm |
| Bracket Space | 1 |
Yes, it comes with a dual bracket that supports both standard and low-profile PCI slots.
The card supports communication speeds of up to 115.2Kbps, suitable for most legacy and industrial serial devices.
It is compatible with DOS and Windows 9x/NT systems and supports legacy ISA address re-mapping for legacy applications.
Yes, it features 2KV ESD protection to safeguard connected devices and the card itself.
The Sunix 5027D is ideal for industrial automation, POS systems, legacy computing, and other serial device applications.
Sold by ComX Computers