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NPort 6600-G2 Series

2nd Gen 8/16/32-port RS-232/422/485 secure terminal servers

moxa-nport-6600-g2-series-image-(1).jpg | Moxa
moxa-nport-6600-g2-series-image-1-(1).jpg | Moxa
moxa-nport-6600-g2-series-image-2-(1).jpg | Moxa
moxa-nport-6600-g2-series-image-3-(1).jpg | Moxa
moxa-nport-6600-g2-series-image-4-(1).jpg | Moxa
moxa-nport-6600-g2-series-image-5-(1).jpg | Moxa
moxa-nport-6600-g2-series-image-6-(1).jpg | Moxa

Features and Benefits

  • Data encryption with secure operation modes for Real COM, TCP Server, TCP Client, Pair Connection, Terminal, and Reverse Terminal
  • Secure Boot only allows Moxa-authorized firmware to run on devices
  • One-click log collection and application analysis for easy troubleshooting
  • Easy RS-485 configuration of serial interfaces with software-adjustable pull high/low resistor and terminator
  • Supports SSL certificate signing by RSA-4096 / ECC-521
  • IEC 62443-4-2 Security Level 2 certified

Certifications

  • moxa-ul-listed-certification-logo-image.png | Moxa
  • moxa-ce-certification-logo-image.png | Moxa
  • moxa-fcc-certification-logo-image.png | Moxa
  • moxa-nema-ts2-certification-logo-image.png | Moxa
 
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Introduction

Moxa has leveraged the IEC 62443-4-1 secure development life-cycle process to develop a new generation of NPort G2 secure terminal servers. In addition, the NPort 6600-G2 Series secure terminal servers are also IEC 62443-4-2 Security Level 2 certified, enabling secure connections for your legacy serial devices to industrial networks. User experience is enhanced based on Moxa’s 35 years of experience in the serial-connectivity field by providing versatile installation means for different space requirements and an easy-to-use troubleshooting tool for maintenance.

Secure Data Transmission

For many applications, guaranteeing secure data transmission is an important concern when connecting serial devices to a network. To answer this concern, the NPort® 6600-G2 secure terminal servers support the TLS and SSH protocols, which work by encrypting data before sending it over the network. With the NPort® 6600-G2, you can be rest assured that serial data is transmitted securely over both private and public networks.

One-click Logs and Application Analysis for Easy Troubleshooting

During the deployment stage, system integrators must connect devices and ensure the communication is smooth. They may encounter issues and will require tools to troubleshoot issues. Moxa provides a application analyzer that generates a report at the click of a button to help the system integrator easily identify potential issues and understand how to resolve them.

At the maintenance stage, system errors may require you to call for help. Device vendors might take a long time to troubleshoot issues because they need to collect information and then hold discussions with the technical support team. The NPort 6600-G2 comes with a one-click log collection function, which can provide all the data that a technical support team needs to quickly troubleshoot system issues.

  • SD Slot

    microSD card
    Up to 2 TB (high speed, 25 Mbps)

  • 10/100/1000BaseT(X) Ports (RJ45 connector)

    2 ports (up to 4)
    Auto MDI/MDI-X connection

  • Magnetic Isolation Protection

    1.5 kV (built-in)

  • Configuration Options

    Web Console (HTTP/HTTPS), Windows Utility, Device Search Utility (DSU), MCC Tool, Serial Console

  • Management

    ARP, DHCP Client, DNS, HTTPS, ICMP, IPv4/IPv6, SMTP, SMTPS, SNMPv1/v2c/v3, SNTP, TCP/IP, UDP, WINS

  • Windows Real COM Drivers

    Windows 11, 10, 8.1, 8, and 7
    Windows Server 2022, 2019, 2016, 2012 R2, 2012, and 2008 R2

  • Linux Real TTY Drivers

    Kernel versions 6.x, 5.x, and 4.x

  • Fixed TTY Drivers

    macOS versions: 14, 13, 12, and 11

  • Arm®-based Platform Support

    Windows 11
    Linux kernel 6.x, 5.x, and 4.x
    macOS 14, 13, 12, and 11

  • Virtual Machine

    VMWare ESXi (Windows 11/10/8.1/8/7 & Linux 6.x, 5.x, and 4.x)
    VMware Fusion (Windows on macOS 14, 13, 12, and 11)
    Parallels Desktop (Windows on macOS 14, 13, 12, and 11)

  • Time Management

    SNTP Client

  • MIB

    MIB-II
    RFC1213, RFC1317
    Private MIB

  • Unicast Routing

    RIPV1/V2
    Static Route

  • Root of Trust

    Secure Boot
    True Random Number Generator (TRNG)
    Security Screws

  • Authentication

    Local database
    RADIUS
    TACACS+

  • Security Protocols

    HTTPS (TLS 1.2/1.3)
    SNMPv3
    SSHv2

  • Encryption

    HTTPS: ECC-256, ECC-384, ECC-521, RSA-1024, RSA-2048, RSA-3072, RSA-4096, AES-128, AES-256, CHACHA20, SHA-256, SHA-384, HMAC

    SSH: ECC-256, ECC-384, ECC-521, RSA-2048, AES-128, AES-256, SHA-256, SHA-384, HMAC

    SNMPv3: AES-128, SHA-256, SHA-384

    Secure OP mode: HTTPS: ECC-256, ECC-384, ECC-521, RSA-1024, RSA-2048, RSA-3072, RSA-4096, AES-128, AES-256, CHACHA20, SHA-256, SHA-384, HMAC

    Config import/export: AES-256, SHA-256, HMAC

  • No. of Ports

    NPort 6610/6650-8-G2 models: 8
    NPort 6610/6650-16-G2 models: 16
    NPort 6610/6650-32-G2 models: 32

  • Connector

    8-pin RJ45

  • Serial Standards

    NPort 6610-G2 models: RS-232
    NPort 6650-G2 models: RS-232, RS-422, RS-485

  • Secure Operation Modes

    Reverse SSH, Secure Pair Connection, Secure Real COM, Secure TCP Client, Secure TCP Server, SSH, Secure Redundant COM, Secure Reverse Real COM

  • Standard Operation Modes

    Disabled, Pair Connection, SLIP, PPP, Real COM, Reverse Terminal, RFC2217, TCP Client, TCP Server, Terminal, UDP, Redundant COM, Reverse Real COM

  • Baudrate

    50 bps to 921.6 kbps (supports non-standard baudrates)

  • Data Bits

    5, 6, 7, 8

  • Stop Bits

    1, 1.5, 2

  • Flow Control

    None, RTS/CTS, DTR/DSR, RTS Toggle, XON/XOFF

  • Parity

    None, Even, Odd, Space, Mark

  • RS-485 Data Direction Control

    Automatic Data Direction Control (ADDC)

  • Terminator for RS-485

    120 ohms
    (software–configurable)

  • Pull High/Low Resistor for RS-485

    1 kilo-ohm, 150 kilo-ohms
    (software–configurable)

  • RS-232

    TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND

  • RS-422

    Tx+, Tx-, Rx+, Rx-, GND

  • RS-485-2w

    Data+, Data-, GND

  • RS-485-4w

    Tx+, Tx-, Rx+, Rx-, GND

  • Input Current

    NPort 6610-G2/6650-G2 models: 320 mA (max.)
    NPort 6650I-G2 models: 330 mA (max.)
    NPort 6650-48V-G2 models: 340 mA (max.)

  • Input Voltage

    AC models: 100 to 240 VAC, 50 to 60 Hz
    DC models: ±48 VDC (20 to 72 VDC, -20 to -72 VDC)

  • Automatic Reboot Trigger

    Built-in WDT

  • Alert Tools

    Built-in buzzer and RTC (real-time clock)

  • Housing

    Metal

  • Dimensions (with ears)

    440 x 200 x 43.65 mm (17.32 x 7.87 x 1.72 in)

  • Weight

    NPort 6610/6650-32-2AC-G2: 2.80 kg (6.17 lb)
    NPort 6650I-16-2AC-G2: 2.80 kg (6.17 lb)
    NPort 6610/6650-32-48V-G2: 2.62 kg (5.78 lb)

  • Installation

    Desktop, Rack mounting (RK-43-01, included in the box)

  • Operating Temperature

    Standard models: -10 to 60°C (14 to 140°F)
    Wide temp. models: -40 to 75°C (-40 to 167°F)

  • Storage Temperature (package included)

    -40 to 75°C (-40 to 167°F)

  • Ambient Relative Humidity

    5 to 95% (non-condensing)

  • 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 (AC), 0.5 kV (DC); Signal: 0.5 kV
    IEC 61000-4-5 Surge: Power: 2 kV (AC), 0.5 kV (DC)
    IEC 61000-4-6 CS: 3 V
    IEC 61000-4-8 PFMF
    IEC 61000-4-11: Excluding DC models

  • Traffic Control

    NEMA TS2

  • Safety

    IEC 62368-1, UL 62368-1, EN 62368-1

  • Vibration

    IEC 60068-2-6

  • Package Drop Test

    ISTA 1A

  • Green Product

    RoHS, CRoHS, WEEE

  • Time

    NPort 6610-8-G2: 29,613 hrs
    NPort 6610-16-G2: 29,517 hrs
    NPort 6610-32-G2: 29,045 hrs
    NPort 6650-8-G2: 29,515 hrs
    NPort 6650-16-G2: 29,321 hrs
    NPort 6650-32-G2: 29,045 hrs
    NPort 6650-8-G2-T: 1,860,004 hrs
    NPort 6650-16-G2-T: 1,314,137 hrs
    NPort 6650-32-G2-T: 921,748 hrs
    NPort 6610-8-2AC-G2: 29,612 hrs
    NPort 6610-16-2AC-G2: 29,515 hrs
    NPort 6610-32-2AC-G2: 29,429 hrs
    NPort 6650-8-2AC-G2: 29,514 hrs
    NPort 6650-16-2AC-G2: 29,321 hrs
    NPort 6650-32-2AC-G2: 29,045 hrs
    NPort 6650-8-2AC-G2-T: 1,857,027 hrs
    NPort 6650-16-2AC-G2-T: 1,312,651 hrs
    NPort 6650-32-2AC-G2-T: 921,017 hrs
    NPort 6650I-8-G2: 29,446 hrs
    NPort 6650I-16-G2: 29,185 hrs
    NPort 6650I-8-G2-T: 1,620,368 hrs
    NPort 6650I-16-G2-T: 1,086,881 hrs
    NPort 6650I-8-2AC-G2: 29,445 hrs
    NPort 6650I-16-2AC-G2: 29,184 hrs
    NPort 6650I-8-2AC-G2-T: 1,618,109 hrs
    NPort 6650I-16-2AC-G2-T: 1,085,864 hrs
    NPort 6650-8-48V-G2: 29,514 hrs
    NPort 6650-16-48V-G2: 29,321 hrs
    NPort 6650-32-48V-G2: 29,045 hrs

  • Standards

    Telcordia Standard SR-332
    Telcordia SR-332 Issue 4

Software, Firmware, and Drivers

FILTER

Name Type Checksum Version Operating System Release Date
Private MIB for NPort 6000-G2 Series
248.3 KB
Software Package
SHA-512
v1.1.0
Jan 28, 2026 Jan 28, 2026 Release notes
Firmware for NPort 6000-G2 Series
4.3 MB
Firmware
SHA-512
v1.1.0
Jan 28, 2026 Jan 28, 2026 Release notes
Real TTY Linux Kernel 4.x Driver
650.0 KB
Driver
SHA-512
v4.4
  • Linux Kernel 4.x
Jan 22, 2026 Jan 22, 2026 Release notes
Moxa Edge Device Library
12.5 MB
Library
SHA-512
v1.0
  • Windows
Jan 22, 2026 Jan 22, 2026 Release notes
Real TTY Linux Kernel 5.x Driver
640.0 KB
Driver
SHA-512
v5.6
  • Linux Kernel 5.x
Jan 22, 2026 Jan 22, 2026 Release notes
Real TTY Linux Kernel 6.x Driver
2.5 MB
Driver
SHA-512
v6.2
  • Linux Kernel 6.x
Jan 22, 2026 Jan 22, 2026 Release notes
Moxa Windows Driver Manager (Windows 11 and Server 2022 and later, WHQL certified)
11.9 MB
Driver
SHA-512
v4.5
  • Windows 11
  • Windows Server 2022
  • Windows Server 2025
Jan 09, 2026 Jan 09, 2026 Release notes
Moxa Windows Driver Manager (Windows 7 to 10 and Windows Server 2008 R2 to 2019, WHQL certified)
12.2 MB
Driver
SHA-512
v3.8
  • Windows 10
  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows Server 2008 R2
  • Windows Server 2012
  • Windows Server 2012 R2
  • Windows Server 2016
  • Windows Server 2019
Jan 09, 2026 Jan 09, 2026 Release notes
PComm Lite - Serial Communication Tool
5.3 MB
Utility
SHA-512
v1.9
  • Windows
Dec 12, 2025 Dec 12, 2025 Release notes
Device Search Utility (installer)
236.2 MB
Utility
SHA-512
v3.1
  • Windows 10
  • Windows 11
  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows Server 2008 R2
  • Windows Server 2012
  • Windows Server 2012 R2
  • Windows Server 2016
  • Windows Server 2019
  • Windows Server 2022
  • Windows Server 2025
Nov 17, 2025 Nov 17, 2025 Release notes
Device Search Utility (portable)
128.6 MB
Utility
SHA-512
v3.1
  • Windows 10
  • Windows 11
  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows Server 2008 R2
  • Windows Server 2012
  • Windows Server 2012 R2
  • Windows Server 2016
  • Windows Server 2019
  • Windows Server 2022
  • Windows Server 2025
Nov 17, 2025 Nov 17, 2025 Release notes
MXview One plugin (Windows)
22.6 MB
Software Package
SHA-512
v1.8
  • Windows 10
  • Windows 11
  • Windows Server 2016
  • Windows Server 2019
  • Windows Server 2022
Oct 01, 2025 Oct 01, 2025 Release notes
MXview One plugin (Linux)
21.7 MB
Software Package
SHA-512
v1.8
  • Ubuntu 18.04
  • Ubuntu 20.04
  • Ubuntu 22.04
Oct 01, 2025 Oct 01, 2025 Release notes
Moxa CLI Configuration Tool (Linux)
11.6 MB
Utility
SHA-512
v1.5
  • Linux Kernel 2.6.x
  • Linux Kernel 3.x
  • Linux Kernel 4.x
  • Linux Kernel 5.x
  • Linux Kernel 6.x
Aug 05, 2025 Aug 05, 2025 Release notes
Moxa CLI Configuration Tool (Windows)
2.0 MB
Utility
SHA-512
v1.5
  • Windows 10
  • Windows 11
  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows Server 2008 R2
  • Windows Server 2012
  • Windows Server 2012 R2
  • Windows Server 2016
  • Windows Server 2019
Jul 30, 2025 Jul 30, 2025 Release notes
Serial Device Server Driver for macOS (macOS 11.x to 14)
6.3 MB
Driver
SHA-512
v1.3
  • macOS 11
  • macOS 12
  • macOS 13
  • macOS 14
Sep 02, 2024 Sep 02, 2024 Release notes

Support Documents

Name Type Version Release Date
Datasheet for NPort 6600-G2 Series
934.9 KB
Datasheet v1.1 Jan 28, 2026 Jan 28, 2026
Tech Note: The Security Hardening Guide for the NPort 6000-G2 Series
1.1 MB
Tech Note v1.1 Jan 22, 2026 Jan 22, 2026
Manual for NPort 6000-G2 Series
16.9 MB
Manual v1.2 Jan 22, 2026 Jan 22, 2026
QIG for NPort 6600-G2 Series
1.8 MB
QIG v1.0 Dec 29, 2025 Dec 29, 2025
Device Search Utility v3.x User Manual
2.8 MB
Manual v1.1 Nov 17, 2025 Nov 17, 2025
FOSS Statement for Moxa PComm Lite Suite for Windows
108.5 KB
Declaration v1.0 Feb 07, 2025 Feb 07, 2025
FOSS Statement for Moxa CLI Configuration Tool
114.6 KB
Declaration v1.0 Dec 10, 2024 Dec 10, 2024
FOSS Statement for NPort macOS driver
108.4 KB
Declaration v1.0 Oct 29, 2024 Oct 29, 2024
FOSS Statement for Device Search Utility
161.8 KB
Declaration v1.0 Jun 24, 2024 Jun 24, 2024
FOSS Statement for Moxa Windows Driver Manager
255.8 KB
Declaration v1.0 Aug 01, 2022 Aug 01, 2022
FOSS Statement for Moxa Linux Driver
1.7 MB
Declaration v1.0 May 01, 2022 May 01, 2022

Available Models (29)

Show Images
moxa-nport-6610-8-g2-image.jpg | MoxaNPort 6610-8-G2moxa-nport-6610-16-g2-image.jpg | MoxaNPort 6610-16-G2moxa-nport-6610-32-g2-image.jpg | MoxaNPort 6610-32-G2moxa-nport-6610-8-2ac-g2-image.jpg | MoxaNPort 6610-8-2AC-G2
Ethernet Ports2 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ45
No. of
Serial Ports
816328
Serial StandardsRS-232RS-232RS-232RS-232
Isolation
No. of
Power Cables
Included
1112
Operating Temp.-10 to 60°C-10 to 60°C-10 to 60°C-10 to 60°C
Add to QuoteView BagAdd to QuoteView BagAdd to QuoteView BagAdd to QuoteView Bag
moxa-nport-6610-16-2ac-g2-image.jpg | MoxaNPort 6610-16-2AC-G2moxa-nport-6610-32-2ac-g2-image.jpg | MoxaNPort 6610-32-2AC-G2moxa-nport-6650-8-g2-image.jpg | MoxaNPort 6650-8-G2moxa-nport-6650i-8-g2-image.jpg | MoxaNPort 6650I-8-G2
Ethernet Ports2 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ45
No. of
Serial Ports
163288
Serial StandardsRS-232RS-232RS-232/422/485RS-232/422/485
Isolation2 kV
No. of
Power Cables
Included
2211
Operating Temp.-10 to 60°C-10 to 60°C-10 to 60°C-10 to 60°C
Add to QuoteView BagAdd to QuoteView BagAdd to QuoteView BagAdd to QuoteView Bag
moxa-nport-6650-8-2ac-g2-image.jpg | MoxaNPort 6650-8-2AC-G2moxa-nport-6650i-8-2ac-g2-image.jpg | MoxaNPort 6650I-8-2AC-G2moxa-nport-6650-8-g2-t-image.jpg | MoxaNPort 6650-8-G2-Tmoxa-nport-6650i-8-g2-t-image.jpg | MoxaNPort 6650I-8-G2-T
Ethernet Ports2 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ45
No. of
Serial Ports
8888
Serial StandardsRS-232/422/485RS-232/422/485RS-232/422/485RS-232/422/485
Isolation2 kV2 kV
No. of
Power Cables
Included
2211
Operating Temp.-10 to 60°C-10 to 60°C-40 to 75°C-40 to 75°C
Add to QuoteView BagAdd to QuoteView BagAdd to QuoteView BagAdd to QuoteView Bag
moxa-nport-6650-8-2ac-g2-t-image.jpg | MoxaNPort 6650-8-2AC-G2-Tmoxa-nport-6650i-8-2ac-g2-t-image.jpg | MoxaNPort 6650I-8-2AC-G2-Tmoxa-nport-6650-8-48v-g2-image.jpg | MoxaNPort 6650-8-48V-G2moxa-nport-6650-16-g2-image.jpg | MoxaNPort 6650-16-G2
Ethernet Ports2 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ45
No. of
Serial Ports
88816
Serial StandardsRS-232/422/485RS-232/422/485RS-232/422/485RS-232/422/485
Isolation2 kV
No. of
Power Cables
Included
2211
Operating Temp.-40 to 75°C-40 to 75°C-10 to 60°C-10 to 60°C
Add to QuoteView BagAdd to QuoteView BagAdd to QuoteView BagAdd to QuoteView Bag
moxa-nport-6650i-16-g2-image.jpg | MoxaNPort 6650I-16-G2moxa-nport-6650-16-2ac-g2-image.jpg | MoxaNPort 6650-16-2AC-G2moxa-nport-6650i-16-2ac-g2-image.jpg | MoxaNPort 6650I-16-2AC-G2moxa-nport-6650-16-g2-t-image.jpg | MoxaNPort 6650-16-G2-T
Ethernet Ports2 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ45
No. of
Serial Ports
16161616
Serial StandardsRS-232/422/485RS-232/422/485RS-232/422/485RS-232/422/485
Isolation2 kV2 kV
No. of
Power Cables
Included
1221
Operating Temp.-10 to 60°C-10 to 60°C-10 to 60°C-40 to 75°C
Add to QuoteView BagAdd to QuoteView BagAdd to QuoteView BagAdd to QuoteView Bag
moxa-nport-6650i-16-g2-t-image.jpg | MoxaNPort 6650I-16-G2-Tmoxa-nport-6650-16-2ac-g2-t-image.jpg | MoxaNPort 6650-16-2AC-G2-Tmoxa-nport-6650i-16-2ac-g2-t-image.jpg | MoxaNPort 6650I-16-2AC-G2-Tmoxa-nport-6650-16-48v-g2-image.jpg | MoxaNPort 6650-16-48V-G2
Ethernet Ports2 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ45
No. of
Serial Ports
16161616
Serial StandardsRS-232/422/485RS-232/422/485RS-232/422/485RS-232/422/485
Isolation2 kV2 kV
No. of
Power Cables
Included
1221
Operating Temp.-40 to 75°C-40 to 75°C-40 to 75°C-10 to 60°C
Add to QuoteView BagAdd to QuoteView BagAdd to QuoteView BagAdd to QuoteView Bag
moxa-nport-6650-32-g2-image.jpg | MoxaNPort 6650-32-G2moxa-nport-6650-32-2ac-g2-image.jpg | MoxaNPort 6650-32-2AC-G2moxa-nport-6650-32-g2-t-image.jpg | MoxaNPort 6650-32-G2-Tmoxa-nport-6650-32-2ac-g2-t-image.jpg | MoxaNPort 6650-32-2AC-G2-T
Ethernet Ports2 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ452 x 10/100/1000M RJ45
No. of
Serial Ports
32323232
Serial StandardsRS-232/422/485RS-232/422/485RS-232/422/485RS-232/422/485
Isolation
No. of
Power Cables
Included
1212
Operating Temp.-10 to 60°C-10 to 60°C-40 to 75°C-40 to 75°C
Add to QuoteView BagAdd to QuoteView BagAdd to QuoteView BagAdd to QuoteView Bag
moxa-nport-6650-32-48v-g2-image.jpg | MoxaNPort 6650-32-48V-G2
Ethernet Ports2 x 10/100/1000M RJ45
No. of
Serial Ports
32
Serial StandardsRS-232/422/485
Isolation
No. of
Power Cables
Included
1
Operating Temp.-10 to 60°C
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