HUAWEI iFTTR F50 Plus OptiXstar K251a-21 Sub FTTR Wi-Fi 7 GPON/XGS-PON Adaptive SC/APC 1.5m Patchcord White

Tri-band Wi-Fi 7 with multi-gigabit throughput turns every room into a high-speed zone. The HUAWEI iFTTR F50 Plus OptiXstar K251a-21 is a sub-unit in Huawei's Fiber-to-the-Room (FTTR) system, designed to extend ultra-fast fiber connectivity directly to each room via a fiber optic link. This white unit connects to the main F50 Plus router using the included 1.5m SC/APC patchcord, delivering seamless whole-home coverage without Wi-Fi dead spots.

Overview

The K251a-21 operates as a slave Optical Network Terminal (ONT) with a GPON/XGS-PON adaptive optical interface. It supports the latest Wi-Fi 7 (802.11be) standard across three bands: 2.4 GHz, 5 GHz, and 6 GHz. With OFDMA and MU-MIMO technologies, it efficiently handles multiple devices simultaneously, making it ideal for bandwidth-intensive applications like 4K/8K streaming, online gaming, and large file transfers.

What stands out

• Wi-Fi 7 tri-band support for ultra-low latency and high capacity
• GPON/XGS-PON adaptive fiber interface for flexible deployment
• Includes 1.5m SC/APC patchcord for quick installation
• Compact white design blends into any interior
• Advanced security with WPA3 encryption
• Managed via OMCI and TR-069 protocols for remote provisioning

Technical details

• Wi-Fi Standard: Wi-Fi 7 (802.11be)
• Frequency Bands: Tri-band (2.4 GHz, 5 GHz, 6 GHz)
• Optical Interface: GPON/XGS-PON Adaptive
• Fiber Connector: SC/APC
• Included Patchcord: 1.5 meters
• Ethernet Ports: 1x 2.5 Gigabit Ethernet, 1x Gigabit Ethernet
• Security: WPA3, WPA2, WPA
• Management: OMCI, TR-069
• Power Supply: External DC adapter
• Antenna Type: Internal high-gain antennas
• Max Wi-Fi Throughput: Multi-Gigabit (Wi-Fi 7)
• Compatibility: Huawei iFTTR F50 Plus System

Our verdict

The HUAWEI iFTTR F50 Plus OptiXstar K251a-21 is a powerful FTTR sub-unit that brings Wi-Fi 7 performance to every corner of your home. With tri-band support, adaptive fiber interface, and robust security, it ensures a future-proof network for demanding users.