Design
Country of origin	China
Internal
Features
FIFO (First In, First Out)	256 B
Data bits	5, 6, 7, 8, 9
Parity bit	Even, Odd, Mark, Space, No
Flow control support
Other features
Dimensions (WxDxH)	102 x 1.7 x 120 mm
Packaging data
Package width	140 mm
Package depth	155 mm
Package height	30 mm
Package weight	51 g
Ports & interfaces
Host interface	PCIe
Host interface gender	Male
Output interface	RS-232
Expansion card form factor	Low-profile
Power
Power management
System requirements
Windows operating systems supported	Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11 x64
Linux operating systems supported	Kernel 2.6, Kernel 2.6.31, Kernel 2.6.33, Kernel 4.6.4
Technical data
Length packaging	0.155m
Article height	2.00cm
Interface	Serial
Chipset	ASIX AX99100
Height packaging	0.030m
Article width	12.00cm
Type	Interface card
Connections external	4x 9pin serial
Weight	0.176kg
Width packaging	0.140m
Net weight	0.051kg
Article length	10.20cm
Low Profile
Weight & dimensions
Width	102 mm
Depth	1.7 mm
Height	120 mm
Weight	2 kg

PCIe x1 expansion card with 4x RS-232 ports for reliable COM port expansionFour serial ports: Expands your computer system with four RS-232 interfaces and enables the simultaneous operation of multiple serial devices via a single PCIe x1 expansion card.
Reliable communication: The ASIX AX99100 controller supports full modem control signals as well as hardware and software flow control for stable data transmission. The integrated FIFO buffer, with 256 bytes per port, enhances operational reliability.
Flexible integration: The card is compatible with PCI Express x1, x4, x8 and x16 slots. The supplied low-profile slot brackets also allow installation in compact enclosures.
Individually configurable: Freely adjustable baud rates and various options for data bits and parity allow adaptation to different serial communication requirements.
Versatile: Suitable for connecting PLCs, measurement and test systems, barcode scanners, modems, POS systems, laboratory equipment and other RS-232 devices.
The InLine PCIe x1 interface card adds four RS-232 ports to compatible computer systems and enables the simultaneous operation of multiple serial devices. Installation is via a PCI Express x1 slot and the card is also compatible with PCIe x4, x8 and x16 slots. Thanks to the included low-profile slot brackets, the card is also suitable for compact cases.
The integrated ASIX AX99100 controller supports full RS-232 modem control signals as well as hardware and software flow control. A 256-byte FIFO transmit and receive buffer per port ensures reliable data transmission. Freely configurable baud rates and comprehensive settings for data bits and parity allow flexible adaptation to different applications.
The interface card is suitable for connecting traditional serial devices such as PLCs, measurement and test systems, modems, barcode scanners, point-of-sale systems, laboratory equipment or embedded systems, and provides a reliable way to expand modern computer systems with additional COM ports.
PCIe standard: PCI Express 2.0 Gen1, x1 lane
Bus interface: PCI Express x1 (compatible with x1, x4, x8 and x16 slots)
Connections: 4x RS-232, D-Sub 9 connectors (male)
Chipset: ASIX AX99100
Serial data rate: up to 115,200 bits/s per port
UART FIFO: 256-byte transmit and receive buffers per port
Flow control: Hardware and software flow control
Modem control: Full RS-232 modem control
Data bits: 5, 6, 7, 8 or 9 bits
Parity: None, Even, Odd, Mark, Space
Baud rate: Freely configurable via internal PLL
IrDA support: Slow IrDA up to 115,200 bits/s
Power management: PCI Power Management 1.2 with Remote Wake-Up
Supported operating systems: Linux kernel 2.6.x, 3.x and 4.x, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10 (32-bit/64-bit), Windows 11 (64-bit)