MikroTik R52HnD miniPCI 802.11n Wireless Card Dual-Band 300Mbps

The MikroTik R52HnD is a dual-band miniPCI wireless card designed for deployment in MikroTik RouterBOARD platforms and compatible miniPCI-equipped devices. Building on the established R52Hn, the R52HnD delivers operation in either the 2.4 GHz or 5 GHz band, a maximum output power of 400 mW, and enhanced ESD protection rated at +/- 15 kV — making it a more resilient choice for installations subject to electrostatic discharge events. Based on the Atheros AR9220 chipset, the card supports the 802.11a/b/g/n standard suite with two spatial streams for Wi-Fi 4 (802.11n) throughput up to 300 Mbit/s. Its miniPCI form factor and MMCX antenna connectors suit integration into routers, access points, and embedded systems where a compact, high-power wireless module is required. The wide tested ambient temperature range of -40 to +70 °C supports both indoor and demanding outdoor enclosure deployments.

Key features & benefits

• Dual-Band Flexibility — Operates in either 2.4 GHz or 5 GHz, allowing the installer to select the optimal band for the deployment environment without requiring a separate card for each frequency.
• High Output Power — 400 mW — A 400 mW (26 dBm) transmit power level extends usable range and helps maintain link quality in environments with significant attenuation or interference.
• Enhanced ESD Protection (+/- 15 kV) — Improved electrostatic discharge protection over the predecessor R52Hn reduces the risk of damage during installation and in environments prone to static buildup.
• Wi-Fi 4 / 802.11a/b/g/n — 300 Mbit/s — Two-chain 802.11n operation delivers up to 300 Mbit/s maximum data rate, supporting legacy 802.11a/b/g clients simultaneously.
• Atheros AR9220 Chipset — The proven AR9220 chip provides broad driver support and stable performance, and is fully compatible with MikroTik RouterOS.
• miniPCI Form Factor with MMCX Connectors — The standard miniPCI edge connector and dual MMCX antenna headers integrate cleanly into RouterBOARD platforms and third-party miniPCI slots, with straightforward antenna pigtail attachment.
• Wide Operating Temperature Range — Tested from -40 °C to +70 °C, the R52HnD remains operational across harsh cold-climate and high-heat enclosure conditions.
• FCC and IC Certified — Carries FCC and Industry Canada (IC) certifications, supporting regulatory compliance for deployments across the United States and Canada.
• RouterOS Compatibility — Fully supported within MikroTik RouterOS, enabling unified management of wireless parameters, traffic policies, and monitoring through a single operating system interface.