MIKROTIK RB5009UG+S+IN

MikroTik RB5009UG+S+IN

Compact 9-Port Router with 10G SFP+, 2.5G Ethernet, and USB 3.0

The MikroTik RB5009UG+S+IN is a compact, high-performance router built for anyone who has outgrown a consumer-grade gigabit router but doesn't need (or want to pay for) a full rack of carrier-class gear. It packs a quad-core ARM processor, a 10-Gigabit SFP+ cage, a 2.5-Gigabit Ethernet port, seven standard Gigabit ports, and a USB 3.0 port into a case small enough to sit on a desk yet rugged enough to mount in a rack. It has become a favorite among home lab enthusiasts, small offices, and network professionals who need serious throughput without serious rack space.

Overview

At its core, the RB5009UG+S+IN is powered by a Marvell Armada 88F7040 quad-core ARMv8 processor running at 1.4 GHz, backed by 1 GB of DDR4 RAM and 1 GB of onboard NAND storage. All of its network ports connect through a Marvell Amethyst switch chip via a 10 Gbps full-duplex link to the CPU, so traffic isn't bottlenecked on its way to and from the processing engine. The router ships with RouterOS v7 pre-installed and includes a RouterOS Level 5 license, giving it full access to MikroTik's extensive routing, firewall, VPN, wireless, and traffic-shaping feature set right out of the box, with free RouterOS updates for the lifetime of the device.

Ports and Connectivity

The port layout is what sets this router apart from typical small-office boxes. It includes seven Gigabit Ethernet ports for general LAN or WAN connections, one 2.5 Gigabit Ethernet port for a high-speed uplink or a fast local device such as a NAS, and one 10G SFP+ cage for fiber uplinks, inter-switch links, or a direct high-speed connection to a server or storage array. Rounding out the connectivity is a USB 3.0 Type-A port (rated for up to 1.5 A) that can be used for external storage, a 4G/LTE modem, or other USB peripherals, along with USB Power Reset functionality for remotely power-cycling connected USB devices.

Flexible Power Options

The RB5009UG+S+IN can be powered three different ways, which makes it easy to fit into almost any deployment: PoE-in on Ethernet port 1 (24–57V), a standard DC barrel jack (24–57V), or a 2-pin terminal block connector (24–57V) for hardwired or battery-backed installations. Maximum power consumption is rated at 25W under full load, and the unit relies entirely on passive cooling, with its metal case acting as a heatsink so there are no fans and no moving parts to fail or generate noise.

Build and Physical Design

Measuring 220 x 125 x 22 mm, the router has a slim, low-profile aluminum enclosure designed to sit flat on a desk or shelf, and its dimensions are intentionally sized so that four units fit side by side in a single 1U rack space, making it an efficient choice for multi-unit deployments or colocation environments. Despite its compact footprint, the case is rated to operate across a wide temperature range of -40°C to 60°C, making it suitable for unconditioned spaces, closets, and light outdoor-adjacent installations.

Software: RouterOS v7

Running MikroTik's RouterOS v7 with a Level 5 license, the RB5009UG+S+IN supports the full breadth of MikroTik's software capabilities: advanced firewalling and NAT, VLANs, VPN protocols (including WireGuard, IPsec, and OpenVPN), dynamic and static routing (OSPF, BGP, RIP), traffic shaping and queueing, hotspot and captive portal management, container support for running lightweight applications directly on the router, and the graphical WinBox and web-based WebFig management tools for configuration.

Typical Use Cases

This router is a natural fit for advanced home networks and home labs where a 10G or 2.5G internet connection or NAS needs a capable router to sit in front of it, for small offices that need business-grade routing, VPN, and firewall features without enterprise pricing, and for network engineers who want a portable, full-featured RouterOS platform for testing, labs, or remote-site deployments. The combination of SFP+, 2.5G, PoE-in, and USB 3.0 in one small chassis also makes it popular as a core router for multi-gigabit fiber internet plans that outstrip what typical ISP-supplied or consumer routers can handle.

Key Specifications at a Glance

Feature Specification CPU Marvell Armada 88F7040, quad-core ARMv8, 1.4 GHz RAM 1 GB DDR4 Storage 1 GB NAND Gigabit Ethernet ports 7 2.5G Ethernet ports 1 SFP+ ports 1 (10G) USB 1x USB 3.0 Type-A (1.5A max) Power input PoE-in (port 1), DC jack, 2-pin terminal — all 24–57V Max power consumption 25W Cooling Passive (fanless) Dimensions 220 x 125 x 22 mm Operating temperature -40°C to 60°C Operating system RouterOS v7 License level RouterOS Level 5 Rack mounting 4 units per 1U

Specifications sourced from MikroTik's official product page. Actual retail pricing (approximately $219 USD suggested) and availability vary by region and reseller.

Note: MikroTik products, including RouterOS, offer a very deep feature set. New users should budget time to learn RouterOS configuration (via WinBox, WebFig, or the CLI), as the router does not behave like a typical plug-and-play consumer device.