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Extreme Networks ExtremeWireless AP3912i
802.11ac Wave 2 Indoor Access Point with Internal Antenna

Extreme Networks ExtremeWireless AP3912i

Extreme Networks Products
ExtremeWireless AP3912i
ExtremeWireless AP3912i Wall-plate Indoor Access Point with Four Internal Antennas
Our Price: Request a Quote


The AP3912 is a feature rich 802.11ac Wave 2 and 802.11abgn indoor access point that delivers enterprise-grade performance and security for small service areas such as residence halls, patient rooms, or conference rooms. Although simple to install, the AP3912 offers a range of connectivity options including three policy controllable wired LAN ports, 2.4/5G , and a wired pass-through port. It is also future proofed, with an integrated BTLE/802.15.4 (support for ZigBee, Thread and other higher level protocols) radio for extended connectivity to Internet of Things (IoT) sensors and devices.

The energy efficient AP3912 uses 802.3af Power over Ethernet (PoE) in normal operating mode. For deployments that require powering a wired device upstream such as an IPTV or VOIP phone, the AP3912 can optionally provide 802.3af power to a wired device when powered via 802.3at PoE+ by a downstream switch.

The AP3912 is built using the latest in technology, including 802.11ac Wave 2, dynamic radio management, spectrum analysis with interference classification, beamforming, multi-user MIMO, self-forming and self-healing meshing, security, role-based authentication, authorization, and access control to ensure consistent and secure connectivity to users and sensors. The 2x2:2 platform is capable of delivering up to 1.2 Gbps over-the-airperformance and up to 50,000 packets per second on the wired port with a unique flow-based architecture that provides consistent performance even when enforcing extensive Layer 7 (application-based) service requirements.

ExtremeCloud Management

The AP3912 is cloud-ready out of the box and supports future secure connectivity to ExtremeCloud™, a single pane of glass for cloud managing both the wired and wireless components of your network. Zero touch provisioning that significantly reduces deployment time. Select models enabled for use with ExtremeCloud.


Business Alignment

  • Extends secure connectivity to Internet of Things (IoT) sensors for Smart Buildings while reducing risks from weak or insecure sensors
  • Enforces role-based grouping of users, devices, and applications to deliver priority, QoS, and security in accordance with business needs for both wired and wireless devices
  • Support for demanding voice/video/ data applications to enhance mobile worker productivity and convenience
  • Seamless roaming across an entire multi-subnet campus without the need for cumbersome client software
  • Integrated management, security, and QoS features reduce operating cost and ensure a consistent user experience regardless of locatio

Operational Efficiency

  • Reuses existing cabling and Power over Ethernet (PoE) infrastructure, reducing costs while improving service
  • Centralized visibility and control accelerates problem resolution, optimize network utilization, and automate management
  • Adaptive architecture reduces complexity and optimizes information flow for each application
  • Dynamic Radio Management when used for planning and monitoring ensures optimal spectrum coverage resulting in the best end-user quality of experience
  • Flexible Client Access optimizes throughput for 802.11ac/n clients in today’s mixed ac, n, and a/b/g client environments

Flexible Managment Options

  • On premise, with hardware or virtual ExtremeWireless Appliance
  • ExtremeCloud Cloud-Managed Networking Platform


Enterprise-Grade for High-Performance

The AP 3935 is a feature rich, dual radio 4x4 802.11ac Wave 2 indoor access point designed to blend into the office, classroom or lecture hall, or large common spaces. The AP 3935 is ideal for securing 802.11ac and 802.11abgn connectivity in high-density, mission critical environments such as schools, universities, hospitals, indoor arenas, and conference centers.

Easy Installation and Future Proof

Easy to install, the AP 3912 offers a range of connectivity options including dual radio 2.4G/5G, with three policy controllable wired LAN ports, and a wired pass-through port. It is also includes an integrated BTLE/802.15.4 radio for connectivity to Internet of Things (IoT) sensors and devices.

ExtremeCloud Enabled

The AP 3912 supports zero touch provisioning and secure connectivity to ExtremeCloud™ with a single pane of glass for unified cloud management of Extreme switching and wireless LAN across your network.



  • Fully-Featured Enterprise Class AP
  • 2 Wi-Fi Radios
  • 2x2 MIMO Implementation for High-Performance 11ac & 11n Throughputs
  • 2 Spatial Streams
  • 2 Simultaneous Users (MU-MIMO)
  • 300 Mbps Maximum Throughput 2.4GHz Radio
  • 867 Mbps Maximum Throughput 5GHz Radio
  • 1.167 Gbps Maximum Throughput Per AP
  • 50,000 pps RFC2285 Wire/Wireless Forwarding Rate
  • 8/16 SSIDs Supported Per Radio/Total
  • 240/480 Per AP Simultaneous Users Per Radio/Total
  • 30 or less Simultaneous Voice calls (802.11b, G711, R>80)
  • Semi-autonomous Mode of Operation
  • Plug and Play Operation/Zero Touch Deployment
  • Security and Standards: WPA, WPA2 (AES), 802.11i, 802.1x, IPSec, IKEv2, PKCS #10, X509 DER / PKCS #12, SSL
  • Internet of Things (IoT) Radio:
    • Dual mode selectable (2.4 GHz with Co-Existence): Bluetooth Low Energy (BLE) 4.1
    • Single and Dual mode operation (Classic and Low Power Profiles 802.15.4 -2011)

Multiple Operating Modes

  • Intelligent Thin AP: Encryption, Security, QoS and RF Management Services done at AP
  • Distributed and Centralized Data Paths Within Same SSID
  • Application Based Distributed and Centralized Data Paths Within Same User / Device Session
  • Simultaneous RF Monitoring and Client Services
  • BYOD / Device Fingerprinting Visibility
  • Application / Layer 7 Visibility and Control
  • In-Channel WIDS
  • In-Channel WIPS
  • Dedicated Multi-Channel WIDS (Guardian Mode)
  • Dedicated Multi-Channel WIPS (Guardian mode)
  • Dedicated Multi-Channel RF Spectrum Analysis and Fingerprinting
  • Locates Devices and Threats via RF Triangulation
  • Self-Forming and Self-Healing Meshing
  • Remote Access Point
  • Hardware-Based, End-to-End Data and Control Plane Encryption
  • Private and Public Cloud Deployments
  • SSL
  • Policy Enforcement for Wireless Clients (L2-L7 Access Control, QoS, Rate Limiting, and VLAN Containment)

Hybrid Operation

  • Security Scanning and Serve Clients On Same Radio
  • Security Scanning and Spectrum Analysis On Same Radio
  • Spectrum Analysis and Serve Clients On Same Radio
  • Multi-Channel Dedicated Security Scanning and Spectrum Analysis

Max Antenna Gain (Integrated Antenna)

  • Radio 1 (5GHz): 6 dBi
  • Radio 2 (2.4GHz): 4 dBi

Adaptive Radio Management

  • Dynamic Channel Control: 802.11h: DFS and TPC support (ETSI)
  • Efficient Use of the Spectrum with A Multi-Channel Architecture
  • Automatic Transmit Power and Channel Control
  • Self-Healing with Coverage Gap Detection
  • Band Steering with Multiple Steering Modes
  • Spectrum Load Balancing of Clients
  • Airtime Fairness
  • Performance Protection In Congested RF Environments
  • Fast Transition Roaming (802.11k)
  • Mitigates Co-Channel Interference with Coordinated Access
  • Mitigates Adjacent Channel Interference with Optimized Receive Sensitivity
  • Efficient Reuse of Channels At Shorter Intervals
  • Mitigates Non 802.11 Interference Without Dedicated Radios
  • Probe Suppression and Client Link Monitoring
  • Management Frame Protection (802.11w)

Quality of Service

  • Quality of Service (WMM, 802.11e)
  • Power Save (U-APSD)
  • Fast Secure Roaming and Handover Between APs (802.11r)
  • Pre-Authentication (Pre-Auth)
  • Opportunistic Key Caching (OKC)
  • Bonjour/LLMNR/UPNP Identification, Containment and Control
  • Supports Voice, Video, and Data Using the Same SSID
  • Prioritizes Voice Over Data for Both Tagged and Untagged Traffic
  • Rate Limiting (Rule and User-Based)
  • Rule and Role Based Qos Processing

Multicast Rate Control

  • Multicast to Unicast Conversion
  • Adaptable Rate Multicast
  • Power Save Mode Optimization for Multicast

Wireless Services

  • Media Access Protocol
    • CSMA/CA with ACK
  • Data Rates
    • 802.11a: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
    • 802.11b: 1, 2, 5.5, 11 Mbps
    • 802.11g: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps
    • 802.11n: Performance Table, check on datasheet
    • 802.11ac: Performance Table, check on datasheet
    • Receiver Sensitivity 802.11a:
      • -92dBm @ 6Mbps
      • -77dBm @ 54Mbps
    • 802.11g:
      • -91dBm @ 6Mbps
      • -78dBm @ 54Mbps
    • 802.11n: See 802.11n Receiver Sensitivity Table, check on datasheet
    • 802.11ac: See 802.11ac Receiver Sensitivity Table, check on datasheet
  • Frequency Bands
    • 802.11 ac/a/n:
      • 5.15 to 5.25 GHz (FCC/IC/ETSI)
      • 5.25 to 5.35 GHz (FCC/IC/ETSI)*
      • 5.47 to 5.725 GHz (FCC/IC/ETSI)*
      • 5.725 to 5.850 GHz (FCC/IC)
    • 802.11b/g/n:
      • 2.400 to 2.4720 GHz (FCC/IC)
      • 2.400 to 2.4835 GHz (ETSI)
    • *FCC/IC DFS planned after release
  • Wireless Modulation
    • 802.11ac: BPSK, QPSK, 16QAM, 64QAM, 256QAM with OFDM
    • 802.11ac Packet Aggregation: A-MPDU, A-MSDU
    • 802.11ac Advanced Features: LDPC, STBC, Maximum Likelihood (ML) Detection
    • 802.11n: BPSK, QPSK, 16QAM, 64QAM with OFDM
    • 802.11n High-throughput (HT) support: HT 20/40 802.11n Packet aggregation: A-MPDU, A-MSDU
    • 802.11n Advanced Features: LDPC, STBC and TxBF
    • 802.11a: BPSK, QPSK, 16QAM, 64QAM with OFDM
    • 802.11g: DSSS and OFDM
    • 802.11b: DSSS


  • Uplink: 1x 10/100/1000 Mbps autosense Ethernet port
  • Console Port:
    • 3 x 10/100/1000 Mbps autosense Ethernet ports - Port 1 is PSE - Provides 802.3af PoE/ Requires 802.3at power source
    • 1 x 10/100/1000 Mbps Pass-through port (connectivity provided by backend switch)


  • Integrated Wall Mounting
  • Single/Dual Gang (Junction) Box Installation


  • Operating:
    • Temperature 0° C to +40 ° C (+32° F to +104° F)
    • Humidity 0%-95% (noncondensing)
  • Storage Temperature: -40° C to +70° C (-58° F to +158° F)
  • Transportation Temperature: -40° C to +70° C (-58° F to +158° F)

Wireless and EMC

  • Compliance
    • FCC CFR 47 Part 15, Class B
    • ICES-003 Class B
    • FCC Subpart C 15.247
    • FCC Subpart E 15.407
    • RSS-210
    • EN 301 893
    • EN 300 328
    • EN 301 489 1 & 17
    • EN 50385
    • EN 55022 (CISPR 22)
    • EN 60601-1-2
    • AS/NZS4268 + CISPR22
  • Safety
    • IEC 60950-1
    • EN 60950-1
    • UL 60950-1
    • CSA 22.2 No.60950-1-03
    • AS/NZS 60950.1


  • Dimensions 4.9” W x 7.4” L x 1.0” H (12.5 x 18.8 x 2.6 cm)
  • Weight 0.454 Kg ( 1.0 lbs)
  • Power Consumption (RMS - Excludes PSE Load)
    • Max: 10 W
    • Idle (radios ON): 4.2 W
  • Limited Lifetime Hardware Warranty

* Actual available power would vary based on local regulatory requirement and actual channels used for operation

Radiation Patterns:

3912i Antenna Radiation Patterns 2.4 GHz

3912i Antenna Radiation Patterns 5.0 GHz



Download the Extreme Networks ExtremeWireless AP3912i Datasheet (PDF).

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Pricing Notes:

Extreme Networks Products
ExtremeWireless AP3912i
ExtremeWireless AP3912i Wall-plate Indoor Access Point with Four Internal Antennas
Our Price: Request a Quote