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AR121W-S
Huawei Enterprise Wireless router, 1 FE WAN, 4 FE LAN
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AR121W-S is a high-performance enterprise router featuring a modular architecture that integrates state-of-the-art VPN functionality, robust throughput capacity, and redundant power options to guarantee network uptime. Designed with advanced security and integrated services, it seamlessly supports dual WAN and dedicated LAN interfaces while delivering optimal performance for demanding business applications.
AR121W-S combines enterprise-grade modular capabilities with versatile routing protocols, VPN features, and comprehensive firewall security to provide a reliable and scalable solution for modern networks. Its powerful design, featuring AC power with redundancy options, high-speed Ethernet technology, and integrated voice and WAN optimization services, makes it ideal for business, enterprise, and remote office use cases.
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Request bulk order quote for AR121W-S for additional pricing. Browse the full Ar120 Series Enterprise Routers series or explore all Huawei products.
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| 5G Support | No | Yes | No | No | No |
| Architecture | Modular | Modular | Modular | Fixed | Modular |
| Broadband | N/A | Fiber Optic / DSL / LTE | Fiber Optic | Fiber Optic | Fiber Optic, LTE |
| Built-in Security Features | Firewall, Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection |
| Compliance Standards | FCC, CE | FCC / CE / RoHS | FCC, CE, RoHS | CE, FCC, RoHS | FCC, CE, RoHS |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 15 inches | 16 inches | 18 inches | 15 inches | 18 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | FCC Part 15 / CE | FCC Part 15, CE | N/A | FCC Part 15, CISPR 22 |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | NIM | SFP+ | NIM, SFP+ | NIM | NIM, SFP+ |
| Features | VPN, Firewall, IPv6 Compatible, Redundancy | VPN / IPv6 Compatible / Firewall / PoE | VPN, VoIP, IPv6 Compatible, Firewall, MPLS, Syslog | VPN, Firewall, Advanced QoS, IPv6 Compatible | VPN, Firewall, IPv6 Compatible, High Availability |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 4 inches | 2 inches | 4 inches | 1.75 inches | 2 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice, WAN Optimization | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization | Voice, Video, WAN Optimization | Voice, Video, WAN Optimization |
| Interface Ports | RJ-45, SFP | RJ-45 / SFP / SFP+ | RJ-45, SFP | RJ-45, SFP+ | RJ-45, SFP, Combo Ports |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 8 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 4 GB | 1 GB | 4 GB | 2 GB | 4 GB |
| Modular Slots Available | 2 Slots | 3+ Slots | 3+ Slots | 2 Slots | 3+ Slots |
| Network Protocols | IPv4, IPv6 | TCP/IP / UDP / ICMP | IPv4, IPv6, MPLS | IPv4, IPv6 | IPv4, IPv6 |
| Power | 150W | 150W | 250 Watt | 65 Watt | 350 Watt |
| Power Source | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / DC Power Supply / Redundant | AC Power Supply / DC Power Supply / Redundant | Redundant AC/DC Power Supply |
| Product Name | AR121W-S | AR129W Integrated Services Router | AR121W Enterprise Modular Router | AR121 Advanced Enterprise Router | AR129 Enterprise Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI, SNMP, Web Interface | SSH / Telnet / SNMP | SNMP, SSH, Telnet | SSH, HTTPS, SNMP | SSH, HTTPS, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF, BGP, RIP, Static Routing |
| Safety | N/A | UL / CSA | UL Certified | N/A | UL, cUL |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | Yes | Yes | Yes | Yes | Yes |
| Telecom | N/A | TIA/EIA | N/A | N/A | ETSI |
| Throughput Capacity | 2 Gbps | 10 Gbps | 10 Gbps | 1 Gbps | 10 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise / Business | Enterprise | Enterprise |
| VPN Support | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN | IPSec, SSL VPN, GRE, DMVPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN Ports |
| Weight | 10 lbs | 15 lbs | 15 lbs | 7 lbs | 25 lbs |
| Wi-Fi Standard | N/A | WiFi 6 | N/A | N/A | N/A |
| Width | 17 inches | 18 inches | 17 inches | 17 inches | 17 inches |
| Wireless Support | No | Yes | No | No | No |
Simple wireless router for small offices. Stable connectivity, easy setup, and reliable day-to-day performance.
Good coverage for basic workloads. Routing is steady and management is straightforward.
Reliable Wi-Fi and consistent uplink behavior for branch deployments.
Easy to deploy and stable for small teams. Good value.
Consistent performance and predictable uptime for SOHO environments.
Solid small-site wireless gateway with dependable operation.
The Huawei AR121W-S offers 1 FE WAN port, 4 FE LAN ports, dual-band Wi-Fi, VPN support, QoS, firewall, and centralized management for small to medium businesses.
The AR121W-S supports IEEE 802.11a/b/g/n/ac dual-band Wi-Fi, delivering up to 1200 Mbps aggregate wireless throughput.
Connect the WAN cable, power on the router, access the web UI via http://192.168.1.1, log in with admin credentials, and follow the Quick Setup wizard to configure Internet and wireless settings.
It supports WPA3, WPA2-PSK, WPA-Enterprise (802.1X), built-in SPI firewall, MAC filtering, and DoS protection to secure your network.