Design
Country of origin	Taiwan
Internal
LED indicators
Features
Chipset	ASIX AX99100
Data transfer rate (max)	4 Gbit/s
Operational conditions
Operating temperature (T-T)	-40 - 85 °C
Other features
Dimensions (WxDxH)	80 x 1.17 x 23 mm
Packaging data
Cables included	Serial
Package width	140 mm
Package depth	33 mm
Package height	155 mm
Package weight	25 g
Package type	Hanging box
Mounting brackets included
Drivers included
Manual
Ports & interfaces
Host interface	M.2
Host interface gender	Male
Output interface	Serial
Expansion card standard	PCI 3.0
Serial ports quantity	2
Serial interface type	9-pin
Power
Power supply input voltage	3.3 V
System requirements
Windows operating systems supported	Windows 10, Windows 11, Windows 7, Windows 8, Windows 8.1
Linux operating systems supported	Kernel 2.6.31, Kernel 2.6.33, Kernel 3.12, Kernel 3.17, Kernel 3.3, Kernel 4.6.4, Linux Kernel 5.10, Linux Kernel 5.11, Linux Kernel 5.12, Linux Kernel 5.13, Linux Kernel 5.14, Linux Kernel 5.15, Linux Kernel 5.19, Linux Kernel 5.4, Linux Kernel 5.8, Linux Kernel 5.9, Linux Kernel 6.2, Linux Kernel 6.5
Server operating systems supported	Windows Server 2012 R2
Technical data
Interface	Serial
Height packaging	0.155m
Width packaging	0.140m
Article width	2.30cm
Article height	0.70cm
Connections external	2x 9pin serial
Net weight	0.025kg
Slot	PCIe
Length packaging	0.033m
Transmission rate	4Gb/s
Weight	0.117kg
Article length	8.00cm
Type	Interface card
Chipset	ASIX AX99100
Connections internal	M.2-NVMe-SSD
Low Profile
Technical details
Compliance certificates	TÜV mark, Federal Communications Commission (FCC), CE
Weight & dimensions
Width	80 mm
Depth	1.17 mm
Height	23 mm
Weight	700 g

Compact M.2 to 2x RS-232 converter for serial applications
PCIe 2.0 interface (5 GT/s) for reliable and fast data transmission
Integrated ASIX AX99100 controller with support for 16C950 UART compatibility
Two DB9-9pin serial ports for industrial and serial communication applications
Onboard LED indicator to display the operating activity
No additional driver required
The InLine® interface card M.2 to 2x serial 9pin connector offers a compact and powerful solution for expanding a system with two serial RS-232 DB9 interfaces. The adapter uses a PCIe 2.0 interface (5 GT/s) and integrates the ASIX AX99100 controller, which is compatible with 16C950 UART to enable reliable and flexible serial communication.
With a maximum transmission rate of up to 1 Mb/s, the card is ideal for industrial applications, embedded systems and serial control devices. The automatic detection of the lane configuration ensures seamless system integration.
Power is supplied directly via the M.2 slot (3.3 V), so no additional power connection is required. Two low-profile slot brackets are included for flexible use of the card in different housings.
Technical data:
Bus type & PCIe: M.2 PCIe end-point controller (single-lane, PCIe 2.0 5 GT/s)
Connection – interfaces:1 x 59-pin M.2 slot (B+M key)
2 x serial RS-232 DB9 connector (9-pin)
Controller/chipset: ASIX AX99100
Serial interfaces:Maximum transfer rate: up to 1 Mb/s
Data bits: 5, 6, 7, 8, 9 bits
Flow control: None, Xon/Xoff, RTS/CTS
Parität: even, odd, none, marked, empty
FIFO buffer: 256 bytes
Operating temperature: -40 °C to +85 °C
Dimensions: 22 mm x 80 mm (M.2 board)
Features:
Automatic detection of the lane configuration during booting
Onboard LED indicator to display the read/write activity
Power supply via M.2 slot (3.3 V)
Support for remote wake-up, power management and DMA
No additional driver required
System requirements: Hardware:
PC with a free M.2 slot (B+M key that supports PCIe)
Motherboard with PCI Express 2.0 or higher
Operating system support:
Windows: 11, 10, 8.1, 8, 7, Vista, XP
Linux: from kernel 2.6.31
Scope of delivery:
1 x InLine® interface card M.2 to 2x serial 9pin connector
2 x low-profile slot brackets
1 x high-profile slot bracket
2 x DB9-9pin serial cable (20 cm length)
4 x Screw
1 x driver CD
1 x user manual (German/English)