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Zyxel NAP353
802.11ac Dual-Radio External Antenna 3x3 Outdoor Nebula Cloud Managed Access Point

Zyxel NAP353

See how Zyxel can help with the Remote Workforce

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NebulaThe Zyxel Nebula NAP353 802.11ac Dual-Radio External Antenna 3x3 Nebula Cloud Managed Access Point is a high-performance outdoor 3x3 802.11ac AP capable of delivering combined data rates of up to 1.75 Gbps. Featuring dual-concurrent, dual-band operation and advanced technologies such as Dynamic Channel Selection, Load Balancing and Smart Client Steering as well as with IP66-rated weather protection, the NAP353 delivers high throughput and reliable coverage for a superb Wi-Fi experience even in harsh outdoor environments.

  • Cloud-managed, dual-radio 3x3 MIMO 802.11ac access point
  • Supports combined data rates of up to 1.75 Gbps
  • IP66-rated weather protection for harsh outdoor environments
  • Self-configuration and zerotouch deployment
  • Enterprise-class security and RF optimization
  • Dynamic Channel Selection, Load Balancing and Smart Client Steering
  • Industry-leading receive sensitivity at as low as -102 dBm


Zero-touch deployments

The Zyxel Nebula NAP353 auto-configures itself after installation and then automatically connects to the Nebula cloud to join the network; so autoconfiguration, provision, monitoring and diagnostics can be performed anytime, anywhere. This simplifies network setup and enables deployment of Nebula APs to a remotely located network even by non-IT professionals.

Best-in-class coverage and performance

Different from other 802.11ac APs, the Zyxel Nebula NAP353 stands out with its best-in-class coverage and performance thanks to its unique RF design. The AP’s three-stream hardware configuration provides power of up to 29 dBm and unparalleled receive sensitivity of as low as -102 dBm.

Optimized wireless experience

The Zyxel Nebula NAP353 delivers optimized wireless experience for users with comprehensive wireless features such as Dynamic Channel Selection (DCS), Load Balancing, and Smart Client Steering, etc. DCS avoids interference from co-channeling and overlapping channels continuously, while Load Balancing and Smart Client Steering that features Band Select and Balance for more spectrum to provide more stable, reliable wireless connections.

Enterprise-class security

The Zyxel Nebula NAP353 inherits the NETCONF protocol for secure configuration changes. In terms of authentication and data encryption, it supports WPA2 enterprise protection and a wide range of Extensible Authentication Protocol (EAP) types, including EAP SIM for smartphones. Besides, the NAP353 also features access control and Layer-2 isolation for privacy protection. The comprehensive security features ensure NAP353 to deliver enterprise-grade protection to the entire network.

Hardened enclosure for harsh outdoor environments

The Zyxel Nebula NAP353 operates well under harsh outdoor environments with its industrial-grade IP66 water- and dust-proof enclosure that is completely resistant to dusts and even powerful water jets; and the embedded heater automatically activates to allow NAP353 to operate in the freezing below-zero temperatures. With these features, the Zyxel Nebula NAP353 is proven ideal for hotels, resorts, schools and other locations in need of high throughput, high capacity outdoor coverages.

Robust, reliable hardware

Ordered shielding frames prevent electromagnetic interference, while covers manage heat through thermal pads to mitigate overheating.

Solid capacitor for longevity

Industry-leading durability from the beginning of design process through manufacturing with the highest-quality components ensures product reliability

Key Applications:

Key Applications


NAP353 Bottom View

NAP353 Specifications:
RF Specifications
Frequency band
  • 2.4 GHz (IEEE 802.11 b/g/n)
    • USA (FCC): 2.412 to 2.462 GHz
    • Europe (ETSI): 2.412 to 2.472 GHz
    • Taiwan (TW): 2.412 to 2.462
  • GHz 5 GHz (IEEE 802.11 a/n)
    • USA (FCC): 5.15 to 5.35 GHz; 5.725 to 5.850 GHz
    • European (ETSI): 5.15 to 5.35 GHz; 5.470 to 5.725 GHz
    • Taiwan (TW): 5.15 to 5.35 GHz; 5.725 to 5.850 GHz
802.11n/ac premium features
  • 3x3 Multiple-Input Multiple-Output (MIMO) with three spatial streams
  • Maximal Ratio Combining (MRC)
  • 20-, 40- and 80-MHz channels
  • Packet aggregation: A-MPDU (Tx/Rx), A-MSDU (Tx/Rx)
  • Cyclic Delay Diversity (CSD) support
  • Maximum Likelihood Demodulation (MLD) support
  • Low Density Parity Check (LDPC) support
Conducted typical transmit output power (dBm)
  • FCC 11b/gb: 29
  • FCC 11g/n: 29
  • FCC 11a: 29
  • FCC 11n/a (ac): 29
  • EU 11b/g: 15
  • EU 11g/n: 15
  • EU 11a: 23
  • EU 11n/a (ac): 23
Number of antenna 6 N-type connectors*
Support data rate
  • 802.11a/g: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, and 54 Mbps
  • 802.11n: up to 450 Mbps in MCS15 (40 MHz)
  • 802.11ac: up to 1300 Mbps in MCS9 (80 MHz)
Receive sensitivity Min. Rx sensitivity up to to -102 dBm
Number of 10/100/1000M LAN 1
Console port RJ-45 serial
PoE Yes
PoE power draw 25 W
WLAN Features
WLAN maximum throughput Up to 900 Mbps
Wireless Security
WPA2-Enterprise Yes
IEEE 802.1X Yes
Number of SSID 8 (per radio)
MAC filtering Yes
Wireless Security
Layer-2 isolation Yes
RADIUS authentication Yes
Captive portal Yes
DHCP client Yes
QoS (PG)
WMM power save Yes
DiffServ marking Yes
Cloud managed Yes
ZON utility Support
Smart connect Neighbor device discovery
Plenum rating Yes
Input power PoE: 802.3at compliant
MTBF (hr) 562,413
Standard Compliance
Ethernet IEEE 802.3, IEEE 802.3u, IEEE 802.11ab IEEE 802.3au, IEEE 802.3az, IEEE 802.3at
PoE IEEE 802.3at
  • 802.11b: DBPSK, DQPSK, CCK
  • 802.11g: BPSK, QPSK, 16-QAM, 64-QAM
  • 802.11a: BPSK, QPSK, 16-QAM, 64-QAM
  • 802.11n: BPSK, QPSK, 16-QAM, 64-QAM
  • 802.11ac: BPSK, QPSK, 64-QAM, 256-QAM
Radio CE-LVD
EMC FCC Part 15B, EN 301 489-1
EN 301 489-17, EN55022, EN55024
EN61000-3-2/-3, EN 60601-1-2, BSMI CNS13438
Safety EN 60950-1, IEC 60950-1; BSMI CNS14336-1
Physical Specifications
Dimensions (WxDxH)(mm/in.)
  • Item: 255 x 256 x 62/10.04 x 10.08 x 2.44
  • Packing: 393 x 158 x 430/15.47 x 6.22 x 16.93
Weight (g/lb.)
  • Item: 1,708/3.77
  • Packing: 3,904/8.63
Included accessories Pole/wall mounting kits
Environmental Specifications
Weather protection IP66 (Embedded heater for harsh weather)
Operating Temperature -40°C to 60°C/-40°F to 140°F
Operating Humidity 10% to 95% (non-condensing)
Storage Temperature -40°C to 70°C/-40°F to 158°F
Storage Humidity 10% to 95% (non-condensing)

* The antenna is not embedded and external antennas are separately sold.

Optional Accessories :

Antenna & Cable Compatibility

Antenna & Cable Compatibility


Download the Zyxel NAP353 Datasheet (PDF).