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ACCESS Portable 2USB

The world's most popular portable IP audio codec

Product Overview

ACCESS 2USB is a retired product, and is no longer available for purchase. Check out our newest portable IP audio codec, ACCESS NX.

Built on a decade of excellence in IP audio transmission, ACCESS NX has two mic-line inputs, as well as a 5-inch capacitive touch screen. Click here to see ACCESS NX in action!

Click here for ACCESS 2USB support.
Click here for ACCESS portable classic support.

Content matters, but having the right technology is crucial for bringing any plan to life. Comrex ACCESS 2USB is a full-featured IP codec designed for the field. Rugged, portable, and versatile, ACCESS 2USB is equipped with a simple user interface perfect for the field. And with CrossLock Technology, the most sophisticated network management technology on the market, ACCESS 2USB is able to handle even the rockiest data connections. Whether it’s a morning remote from the back of a bicycle, a drop-in from a crowded stadium, or a live news broadcast from a helicopter, ACCESS 2USB is ready for whatever you can dream up.

“I recently did a broadcast with one of our stations from Amsterdam. We flew to the city, not knowing what connectivity options were going to be available to us. We walked around the streets til our morning show host said “I wanna do my podcast from here”. I started looking for Wi-Fi, and found a local hotspot – we did a test, and had a pretty good connection, so we did one of our days from a street in Amsterdam. We found a restaurant that allowed us to set up outside and we did about 6 hours of broadcasting from there. I’ve used it from London, Amsterdam, Mexico, and we’ve had success.” – Mike Sprysenski, iHeartMedia


  • Two USB ports
  • Built-in Ethernet port
  • Built-in battery – up to 7 hours of talk time (5 hours with mixer)
  • MPEG 4/AAC algorithms included
  • CrossLock for secure and stable broadcasting
  • SwitchBoard for easier connectivity
  • Optional 5-channel mixer

ACCESS Portable 2USB works with:

ACCESS NX Portable
ACCESS Portable Classic
ACCESS Portable 2USB
ACCESS Rackmount
FieldTap (app)
ACCESS MultiRack
Comrex POTS codecs (with some limitations)

IP Networks

IP networks are available virtually everywhere. ACCESS 2USB offers several ways to get connected. You can utilize the included USB Wi-Fi modem to connect to widely available HotSpots or use the integrated Ethernet ports to connect to wired DSL or broadband cable IP networks. Either of the two USB ports will accommodate connections to 3G/4G cellular data networks using Comrex supported USB devices. ACCESS 2USB also includes a USB POTS/PTSN modem for use on legacy analog phone lines.

Learn more about 3G/4G Compatible Devices

CrossLock Technology

Quite simply the most advanced network management tool on the market today, CrossLock gives users the ability to manage and bond multiple data connections together simultaneously. When a new network is introduced, Crosslock will immediately evaluate how much bandwidth is available, while factoring in latency and jitter information, and combine the two connections to take advantage of all available bandwidth. More than just combining networks, CrossLock can also monitor each data connection individually and, when necessary, apply appropriate error correction, recovery, or concealment techniques.


With its 7-hour Lithium Ion battery, integrated mixer, easy-to-navigate touch screen, and handheld form factor, ACCESS can go (and has gone) just about everywhere.

App Compatibility

ACCESS is compatible with smartphone applications, including Linphone and Luci Live. Connect to ACCESS from your smartphone quickly and easily for easy drop-ins and spontaneous remotes.

ACCESS is also compatible with FieldTap. A free application for iOS and Android, FieldTap makes it simple to connect with the touch of a button. Plus, FieldTap is compatible with all other Comrex IP audio codecs.

Learn more about FieldTap

SwitchBoard TS

Comrex SwitchBoard is a feature that allows users to bypass common IP networking snags (like private LANs and firewalls) by routing data through a private server maintained by Comrex.

SwitchBoard within the hardware codec enables the following functions:

  • Comrex codecs can sync with a cloud based server and deliver status information
  • Comrex codecs can determine their public IP address and the type of any NAT-style router ahead of the codec, and display that information to the user
  • Comrex codecs can display presence, status, NAT info and IP addresses of other codecs within the same fleet
  • Comrex codecs can share this information with codecs outside the fleet (Shares)
  • Comrex codecs can take instruction from the server on how best to traverse NATs when placing a call between two codecs

Reduce the strain on your IT department and worry less on remote day. SwitchBoard makes it easier to log on to unfamiliar Wi-Fi networks, like those you might encounter in hotels, schools, and wherever else you might do a remote.

SwitchBoard is included in the purchase of any ACCESS codec.

Learn more about SwitchBoard TS



Sorry – ACCESS Mixer is no longer available for purchase. Please consider ACCESS NX and Mixer.

Plug-in five I/O mixer for ACCESS Portable

The Comrex ACCESS Portable includes one mic/line adjustable input on XLR, one stereo line level input on mini jack, and a headphone and line-level stereo output on mini-jack.

The ACCESS Portable Mixer accessory “docks” to the ACCESS Portable and expands the audio I/O to five mic/line selectable XLR Inputs and five stereo Headphone Outputs on 1⁄4″ jacks. All ACCESS Portable audio connectors remain active during use of the Mixer, so the total number of Input/Headphone connector pairs increases to six.


  • Five Mic/Line level switchable mono inputs on balanced XLR
  • Five 1/4″ TRS headphone jacks
  • Powered by ACCESS Portable

Learn more about ACCESS Mixer

Comrex Connect Modems

The Comrex Connect Modem is designed to support the unique needs of remote broadcasters. A high-powered, industrial strength 4G/LTE modem outfitted with a high-gain antenna, the Connect Modem is more powerful than most USB data modems available on the market, to handle the heavy data load of a broadcast over IP.

Leverage Two Connect Modems

Leverage the power of two Comrex Connect Modems with your ACCESS codecs for twice the reliability. CrossLock technology, our sophisticated custom reliability layer, bonds the available cellular networks and sends a single media stream, along with background and error correction information, resulting in a higher level of reliability for remotes.  

The bracket mount options for ACCESS 2USB Portable are a Standard Bracket with one pouch to accommodate one modem or an EXT Bracket with pouch to add a second modem. Both are designed to attach to the back of the ACCESS 2USB. Both are required to use two modems. 

Learn more about Comrex Connect Modems

Extra Small Case

Watertight, crushproof, and dust proof to ensure the best protection for your ACCESS Portable.

Exterior Dims:
L 15.4″ x W 12.1″ x H 6.8″

Contact a dealer to purchase

Small Case

Durable travel case, perfect for carry-on or shipping. Mixer cutout. Multiple foam inserts available.

Exterior Dims:
L 19.5″ x W 16″ x H 8.25″

Contact a dealer to purchase



  • Two USB ports
  • Data networks supported: modem connections, 3G/4G cellular links, and Wi-Fi or Wi-Max Access cards
  • Battery life: 7 hours of talk time (5 hours with mixer)
  • Backward compatibility to Comrex POTS codecs
  • MPEG 4/AAC algorithms available.
  • Optional mixer: provides up to 6 mono inputs/headphone outputs & stereo inputs (when connected to ACCESS Portable 2USB)
  • Optional custom cases available
  • MIC/Line switchable mono input on balanced XLR with adjustable level control
  • MIC input offers switchable 12v phantom power
  • Stereo headphone output on ⅛” (3.5 mm) mini jack with adjustable volume control
  • Stereo analog line level inputs/outputs on unbalanced 1/8 “ (3.5 mm) mini jacks
  • “Hands free” cellular connection on ⅛” (3.5 mm) mini jack
  • Audio level meters available via integrated LCD interface
  • Two USB ports for POTS modem or Wi-Fi modem (both included), and optional 3G/4G devices
  • 10/100Base-T Ethernet connector
  • Mini-DIN connector for serial ancillary data
  • Mini-DIN connector for contact closures (4)
  • Multi-pin connector for optional mixer



Audio Connections

  • Mono In: 3-pin XLR female, pin 1 ground, pin 2 +, pin 3 –
  • Stereo Line In: 1/8″ (3.5mm) female, tip=left, ring=right, sleeve=gnd
  • Line Out: 1/8″ (3.5mm) female, tip=left, ring=right, sleeve=gnd
  • Headphone Out: 1/8″ (3.5mm) female, tip=left, ring=right, sleeve=gnd
  • Mobile In/Out: 1/8″ (3.5mm) female, tip=send, ring=receive, sleeve=gnd

Audio Specifications – Mono Input

  • Type: Balanced
  • Impedance – Mic: 20k Ohms (pins 2-3) | Line: 200k Ohms (pins 2-3)
  • Level: Mic: -60 dBu nominal, -15 dBu max Line: 0 dBu nominal, +20 dBu max

Audio Specifications – Stereo Input

  • Type: Unbalanced
  • Impedance: 9k Ohms (tip to sleeve, or ring to sleeve)
  • Level: -10 dBu nominal, +10 dBu max

Audio Specifications – Line Output

  • Type: Unbalanced
  • Impedance: 0 Ohms (tip to sleeve, or ring to sleeve)
  • Level: Normal: -10 dBu nominal | Professional: 0 dBu nominal

Other Connections

  • Serial: 8-pin DIN female
  • Contact Closures: 9-pin DIN female
  • USB: USB Type A
  • Ethernet: 8-pin modular, 100BASE-T wiring
  • Power: 5-pin DIN female, pins 3+5 +15V, pins 2+4 ground

Power & Physical

  • Voltage AC: 100-240 VAC, 50-60 Hz
  • Power: 24 Watts with all peripherals
  • Size (w/ battery): 4.75″ W (12.1 cm), 8.25″ D (21 cm), 2.5″ H (6.35 cm)
  • Weight (w/ battery): 2.2 lbs (1.0 kg)


ACCESS 2USB Power Supply (5 pin mini-din connector)


5 pin mini-din connector power supply for ACCESS 2USB. IEC Power cord not included.

12V DC Adapter


Stand-alone Rapid Charger


Perfect stand-alone charger for your ACCESS Portable batteries.

Spare Battery


Wi-Fi Adapter (Domestic) – No longer available


Wi-Fi Adapter (International)


Power Cord (IEC Socket)


Serial Cable


DB9F to mini-DIN 8M.

Contact Closure Cable


DB9M to mini-DIN 9M.



Dock cover for Mixer port




Strap Bracket


Qty 1.  Order 2 if needed.


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More Info

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