Moxa

UPort 1400-G2 Series

4-port RS-232/422/485 USB-to-serial converters

UPort 1400-G2 Series

Features and Benefits

  • USB 3.2 SuperSpeed capability
  • 512-byte on-chip FIFO cache and flow control for enhanced performance
  • Drivers provided for a broad selection of operating systems, including Windows and Linux
  • 50 bps to 921.6 kbps baudrate (nonstandard baudrates supported)
  • Double-sided LEDs located at the corners show power, TX, and RX statuses in either directions
  • Latching USB cable design for firmer connection
  • Wide operating temperature models available for -40 to 75°C (-40 to 167°F) environments
  • Serial port with 2 kV isolation protection (for “-I” models)

Certifications

  • CE
  • FCC
  • UL Listed
  • KC

Introduction

The UPort® 1400-G2 Series USB-to-serial converters are ideal for laptop or workstation computers that need serial port expansion. They are essential for computers which need to connect different serial devices in the field or need separate interface converters for devices without a standard COM port or DB9 connector. The computers also come with a USB cable that has a latch and screw lock for a more secure connection between the UPort and your computer. The UPort® 1400-G2 Series converts from USB to RS-232/422/485. All products are compatible with legacy serial devices and can be used with instrumentation and point-of-sale applications.

Models in this series (10)

UPort 1410-G2UPort 1450-G2UPort 1450-G2-TUPort 1450I-G2
Serial StandardsRS-232RS-232/422/485RS-232/422/485RS-232/422/485
No. of Serial Ports4444
Isolation---2 kV
Power InputUSB bus power/ Power adapterUSB bus power/ Power adapterUSB bus power/ Power adapterUSB bus power/ Power adapter
Operating Temp.0 to 60°C0 to 60°C-40 to 75°C0 to 60°C
Add to Quote View Bag Buy from distributors (for USA only)Add to Quote View Bag Buy from distributors (for USA only)Add to Quote View Bag Buy from distributors (for USA only)Add to Quote View Bag Buy from distributors (for USA only)
UPort 1450I-G2-T
Serial StandardsRS-232/422/485
No. of Serial Ports4
Isolation2 kV
Power InputUSB bus power/ Power adapter
Operating Temp.-40 to 75°C
Add to Quote View Bag Buy from distributors (for USA only)

Specifications

Shown for UPort 1410-G2. Per-model differences are listed in the selection grid above.

USB Interface

USB Standards
USB 3.2 Gen 1 USB 1.1/2.0 compliant
Speed
5 Gbps, 480 Mbps, 12 Mbps
No. of USB Ports
1
USB Connector
USB Type B

Serial Interface

Connector
DB9 male
No. of Ports
4
Serial Standards
RS-232
FIFO
512 bytes
Baudrate
50 bps to 921.6 kbps (supports non-standard baudrates)
Parity
None, Even, Odd, Space, Mark
Data Bits
5, 6, 7, 8
Stop Bits
1, 1.5, 2
Flow Control
RTS/CTS, XON/XOFF
RS-485 Data Direction Control
Automatic Data Direction Control (ADDC)
Pull High/Low Resistor for RS-485
1 kilo-ohm, 150 kilo-ohms
Terminator for RS-485
120 ohms
Surge
0.5 kV
Isolation
2 kV (I models)

Serial Signals

RS-232
TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422
Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w
Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w
Data+, Data-, GND

Serial Software Features

Windows Drivers
Windows 11, 10, 8.1, 8 and 7 Windows Server 2022, 2019, 2016, 2012 R2, 2012 and 2008 R2
Linux Drivers
Kernel 6.x, 5.x and 4.x
Mac Drivers
macOS version (Intel 64): 13, 12, 11 and 10.1x
Virtual Machine
VMware Fusion (Windows on macOS 13, 12, 11, 10.1x, Intel 64) VMWare ESXi (Linux kernel 4) Parallels Desktop (Windows on macOS 13, 12, 11, 10.1x, Intel 64)
Arm®-based Platform Support
Linux kernel 6.x, 5.x and 4.x
Android API
Android 3.1.x and later

Power Parameters

Input Voltage
5 VDC by USB bus power or 12 to 48 VDC by external power adaptor
Input Current
183 mA @ USB 2.0 370 mA @ USB 3.2 200 mA @ 12 VDC

Physical Characteristics

Housing
Metal
Dimensions
185 x 30 x 90.6 mm (7.28 x 1.18 x 3.57 in)
Weight
359 g (0.79 lb)
IP Rating
IP20

Environmental Limits

Operating Temperature
0 to 60°C (32 to 140°F)
Storage Temperature
-40 to 75°C (-40 to 167°F)
Ambient Relative Humidity
5 to 95% (non-condensing)

Standards and Certifications

EMC
EN 55032/35
EMI
CISPR 32, FCC Part 15B Class A
EMS
IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m IEC 61000-4-4 EFT: Power: 1 kV IEC 61000-4-5 Surge: Power: 1 kV, Signal: 0.5 kV IEC 61000-4-6 CS: 3 V; 150 kHz to 80 MHz IEC 61000-4-8 PFMF
Safety
IEC 62368-1 EN 62368-1 UL 62368-1 (CB) KC
Shock
IEC 60068-2-27
Vibration
IEC 60068-2-6 IEC 60068-2-64
Freefall
IEC 60068-2-31

Declaration

Green Product
RoHS, CRoHS, WEEE

MTBF

Standards
Telcordia Standard SR332, Telcordia Issue 2
Time
1,846,458 hrs

Resources

NameTypeVersionDate
Driver for UPort 1200/1400/1600/1200-G2/1400-G2/1600-8-G2 Series (Windows 7 to 10 and Windows Server 2008 R2 to 2019, WHQL certified)11.6 MBDriverv3.4Jan 21, 2026 Jan 21, 2026 Release notes
PComm Lite - Serial Communication Tool5.3 MBUtilityv1.9Dec 12, 2025 Dec 12, 2025 Release notes
Driver for UPort 1200/1400/1600/1200-G2/1400-G2/1600-8-G2 Series (Linux kernel 4.x)4.7 MBDriverv4.3Oct 02, 2025 Oct 02, 2025 Release notes
Driver for UPort 1200/1400/1600/1200-G2/1400-G2/1600-8-G2 Series (Linux kernel 6.x)4.6 MBDriverv6.2Oct 02, 2025 Oct 02, 2025 Release notes
Driver for UPort 1200/1400/1600/1200-G2/1400-G2/1600-8-G2 Series (Linux kernel 5.x)4.6 MBDriverv5.3Oct 02, 2025 Oct 02, 2025 Release notes
Driver for UPort 1200/1400/1600/G2 Series (Windows XP or Windows Server 2008 and prior, WHQL certified)1.4 MBDriverv2.1Mar 07, 2024 Mar 07, 2024 Release notes
Driver for UPort 1200/1400/1600/1200-G2/1400-G2/1600-8-G2 Series (macOS 10.12 to 13)413.6 KBDriverv1.1Oct 13, 2023 Oct 13, 2023 Release notes
Driver for UPort 1200/1400/1600/1200-G2/1400-G2/1600-8-G2 Series (Windows 11 and Windows Server 2022 and later, WHQL certified)8.6 MBDriverv4.1Oct 13, 2023 Oct 13, 2023 Release notes
FOSS Statement for UPort 1200, 1400, 1600, 1200-G2, 1400-G2 and 1600-8-G2 Series Linux Driver v5.3143.6 KBDeclarationv1.0May 18, 2026
FOSS Statement for UPort 1200, 1400, 1600, 1200-G2, 1400-G2 and 1600-8-G2 Series Linux Driver v4.3145.7 KBDeclarationv1.0May 18, 2026
FOSS Statement for UPort 1200, 1400, 1600, 1200-G2, 1400-G2 and 1600-8-G2 Series Linux Driver v6.2143.6 KBDeclarationv1.0May 18, 2026
QIG for UPort 1400-G2 Series3.2 MBQIGv1.2Aug 25, 2025
Manual for UPort 1200-G2/1400-G2/1600-8-G2 Series10.7 MBManualv2.2Jul 30, 2025
FOSS Statement for Moxa ViewCOM for Windows139.9 KBDeclarationv1.0Feb 07, 2025
FOSS Statement for Moxa PComm Lite Suite for Windows108.5 KBDeclarationv1.0Feb 07, 2025
FOSS Statement for UPort 1200, 1400, 1600, 1200-G2, 1400-G2 and 1600-8-G2 Series macOS Driver115.8 KBDeclarationv1.0Oct 29, 2024
FOSS Statement for UPort 1200, 1400, 1600, 1200-G2, 1400-G2 and 1600-8-G2 Series Windows Driver187.6 KBDeclarationv1.0Oct 29, 2024
Datasheet for UPort 1400-G2 Series985.3 KBDatasheetv1.2Mar 07, 2024
Declaration of Conformity for UPort 1400-G2 Series310.1 KBDeclarationv1.0Dec 19, 2023
Tech Note: UPort Driver Arm-based Platform Porting Guide423.1 KBTech Notev1.2Oct 13, 2023

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