AMX NMX-ATC-N4321-C – N4000 Series Audio-over-IP Transceiver (Card) is backordered and will ship as soon as it is back in stock.
Shipping Availability*
Shipping Availability*
Free Ground Shipping on Most Orders Over $250.00
Looking for the best price or expert advice? Give us a call at 1-888-230-3661 or use the Live Chat below. Buying 1 or 100, you may qualify for greater savings beyond the advertised price.
AMX NMX-ATC-N4321-C – N4000 Series Audio-over-IP Transceiver (Card)
Product Overview
The AMX NMX-ATC-N4321-C is the card version of the N4321 Audio-over-IP transceiver — bidirectional analog audio distribution over Ethernet in card format for the NMX-ACC-N9206 rack carrier, enabling high-density audio-over-IP transceiver deployments in campus and enterprise audio distribution systems.

Product Description
The AMX NMX-ATC-N4321-C audio transceiver card delivers the same bidirectional analog audio-over-IP functionality as the N4321 stand-alone in the NMX-ACC-N9206 2RU card carrier — up to 6 audio transceiver cards per 2RU for high-density audio distribution head-ends in campus, hospitality, and enterprise audio systems.
Technical Specifications
| Specification | Value |
|---|---|
| Function | Audio-over-IP transceiver |
| Form Factor | Card (NMX-ACC-N9206) |
| SKU | FGN4321-CD |
Key Features
- Audio-over-IP Transceiver: Bidirectional audio encoding and decoding over IP for AV-over-IP system integration.
- Card Form Factor: Installs into N4000 Series chassis for high-density multi-port audio transceiver deployments.
- N-Series Platform Integration: Operates within AMX N-Series AV-over-IP infrastructure managed by N-Command software.
Typical Applications
- High-density audio-over-IP transceiver deployments in N4000 Series chassis for enterprise AV systems
- Multi-room audio distribution using N4000 Series AoIP infrastructure alongside N-Series video
Frequently Asked Questions
How does the NMX-ATC-N4321-C differ from the NMX-ATC-N4321 stand-alone?
The -C card variant requires an N4000 Series chassis for multi-port deployments. The stand-alone operates independently without a chassis.
Does the NMX-ATC-N4321-C support Dante?
No. For Dante/AES67 audio-over-IP, refer to the NMX-ATC-N4321D-C card variant.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
Nationwide Audiovisual Services, Design, Installation & Support
Creation Networks is a trusted nationwide partner for complete audiovisual solutions — delivering expert AV system sales, professional design, programming, installation, and ongoing support to organizations across the United States.
From Microsoft Teams Rooms and enterprise video conferencing to LED video walls, live streaming production, and hybrid collaboration systems, we provide end-to-end AV integration using premium, certified technology from industry leaders including Crestron, Q-SYS, Shure, Extron, and Absen.
Whether you operate a single location or manage facilities nationwide, Creation Networks ensures your AV systems are designed for reliability, scalability, security, and long-term performance — helping your organization communicate more effectively and operate at peak efficiency.
CREATION NETWORKS — A PARTNER YOU CAN TRUST SINCE 2006












