Description
The MikroTik hAP mini (RB931-2nD) is a compact wireless access point (AP) and router designed for home or small office use. It operates on the 2.4 GHz frequency band and offers the full functionality of MikroTik's powerful RouterOS operating system in a small form factor. 
Features and specifications
According to the official MikroTik website and product listings from various retailers, here are the key features and specifications of the hAP mini: 
Hardware
Product code: RB931-2nD. 
Architecture: SMIPS. 
CPU: QCA9533 with one core and a 650 MHz nominal frequency. 
RAM: 32 MB. 
Storage: 16 MB of Flash storage. 
Ethernet ports: Three 10/100 Mbps ports. 
Powering: Powered via a microUSB port with a 5V input. 
Dimensions: 48 x 78 x 81 mm, making it very small and compact. 
Wireless
Standards: 802.11b/g/n (Wi-Fi 4). 
Frequency: 2.4 GHz. 
Max data rate: 300 Mbit/s. 
Antenna gain: 1.5 dBi omnidirectional antenna. 
Wireless chains: 2. 
Software and configuration
Operating system: MikroTik's RouterOS (License Level 4). This provides access to a wide range of advanced networking features. 
Default configuration: The unit comes pre-configured as a simple access point, with one port for the internet and the other two for LAN devices. You can set a password via the web interface out of the box. 
Customization: The hAP mini can be reconfigured extensively using RouterOS for more complex networking setups. 
Easy setup: For a simple configuration, you can use the web-based QuickSet feature or the mobile application. 
Best for
The hAP mini is a solid choice for those looking for:
A budget-friendly entry into RouterOS: With its low price point, it's an affordable way to test MikroTik's feature-rich operating system. 
Small homes or offices: It can serve as the primary wireless router for smaller spaces. 
Adding wireless to a wired network: If you need to add wireless connectivity to an existing network, the hAP mini is a simple and reliable solution. 
A compact, discrete networking device: Its very small size allows it to be placed out of sight. 
Limitations
It's important to note the hAP mini's limitations:
Limited wired speed: All Ethernet ports are 10/100 Mbps, meaning it does not support gigabit speeds. 
2.4 GHz only: It does not support the faster 5 GHz Wi-Fi band, which can be a drawback in crowded wireless environments. 
Entry-level performance: While powerful for its size, the hAP mini's 650 MHz CPU and 32 MB of RAM are less powerful than more advanced MikroTik models and may struggle with very demanding network configurations. 
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