MikroTik RB5009UG+S+IN router

1. Port Interface Summary

The “UG+S+IN” suffix defines the port configuration:

·       U: USB 3.0 Type-A port

·       G: Seven (7) 10/100/1000 Mbps Gigabit Ethernet ports

·       S+: One (1) 10/100/1000/2500/5000/10000 Mbps SFP+ cage

·       IN: One (1) 10/100/1000/2500 Mbps 2.5 Gigabit Ethernet port (combo port with the SFP+)

Important Note on Combo Port: The 2.5G Ethernet port (eth1) and the SFP+ cage (sfp-sfpplus1) are a combo port. This means only one can be active at a time. You select which one to use in the RouterOS software.

Port Label	Type	Speed	Notes
ETH1	RJ45	10/100/1000/2500 Mbps	Combo port with SFP+1.
SFP+1	SFP+ Cage	10 Gbps	Combo port with ETH1. Supports 1G/10G modules, and with RouterOS v7+, also 2.5G/5G.
ETH2	RJ45	10/100/1000 Mbps
ETH3	RJ45	10/100/1000 Mbps
ETH4	RJ45	10/100/1000 Mbps
ETH5	RJ45	10/100/1000 Mbps
ETH6	RJ45	10/100/1000 Mbps
ETH7	RJ45	10/100/1000 Mbps
ETH8	RJ45	10/100/1000 Mbps
USB	USB 3.0 Type-A	5 Gbps	Can be used for storage (3G/4G modems are not officially supported).

2. Performance Benchmarks (RouterOS v7)

These are approximate real-world routing performance figures.

Test	Throughput	Conditions
FastPath Routing	~10 Gbps	1518 byte packets, simple 1:1 NAT.
Firewall Filtering	~3.5 – 5 Gbps	25 simple filter rules.
IPsec AES-256-GCM	~2.5 – 3 Gbps	Hardware-accelerated encryption.
IPsec AES-128-CBC	~1.8 Gbps
L2TP/IPsec	~600 Mbps
PPPoE	~2 Gbps	With FastPath, a single client.
OVPN (TCP)	~200 Mbps	Highly dependent on CPU clock.
CONNMARK (FastTrack)	~7.5 Gbps

3. Physical & Environmental

·       Dimensions: 195 x 125 x 33 mm

·       Weight: 0.78 kg

·       Operating Temperature: -40°C to 60°C (-40°F to 140°F)

·       Input Voltage: 18-57V DC (Passive PoE-in on Ether1, or terminal block)

·       Max Power Consumption: 20W

---

Key Features and Use Cases

·       High-Speed Core Routing: The powerful CPU and 10 Gbps SFP+ port make it ideal for gigabit and multi-gigabit internet connections.

·       Hardware Offloading: The CPU features extensive hardware offloading for IPv4 routing, bridge forwarding, VLANs, and IPsec encryption, enabling near-wire-speed performance for these tasks.

·       Compact and Silent: Its all-metal, fanless design makes it perfect for office or home environments where noise is a concern.

·       Expandable Storage: The M.2 slot allows for adding an SSD to use features like Container, Dude agent, or extensive logging.

·       Ideal for: Small/Medium Businesses, Tech-savvy home users, ISPs for customer premises equipment (CPE), Network labs.

Important Considerations Before Buying

1.       Passive PoE-IN Only: You must power it with a compatible Passive PoE power supply (like the MikroTik PAR series) or use the separate DC power terminal block. It cannot power other PoE devices like cameras or access points.

2.       No PoE Out: If you need to power other devices, you must look at other models (like the RB5009PPr variant) or use separate PoE injectors/switches.

3.       Combo Port: Remember you can only use either the 2.5G Ethernet port or the SFP+ port at the same time, not both.

4.       RouterOS Learning Curve: MikroTik’s RouterOS is incredibly powerful but has a steeper learning curve than consumer-grade router software. It is configured via WinBox (GUI), WebFig (Web GUI), or a CLI.

The MikroTik RB5009UG+S+IN is widely regarded as one of the best value, performance-per-watt, and future-proof routers in its class.