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Product Line: Fortinet 81E-POE Series
Product Type: Router Switch
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Product Description

The FG-81E-POE Fortinet features 12 GE RJ45 PoE/+ ports and 2 GE RJ45/SFP shared media pairs, designed for flexible connectivity and optimized for high-speed networking. It offers a firewall throughput of 4 Gbps across 1518/512/64 byte UDP packets, with a low latency of 3 μs for 64 byte UDP packets, ensuring efficient data processing and security. Additional technical specifications include 1x 128 GB SSD for internal storage, IPsec VPN throughput of 2.5 Gbps, and it supports up to 1.3 million concurrent TCP sessions, with a power consumption range of 20W (average) to 137W (maximum).

FAQs for the FG-81E-POE

  • What are the available types of ports on this device?
    The device offers GE RJ45/SFP Shared Media Pairs: 2, GE RJ45 PoE/+ Ports: 12, and GE RJ45 DMZ/HA Ports: 2.
  • How much internal storage is provided?
    1x 128 GB SSD.
  • Can you detail the firewall throughput rates for different UDP packet sizes?
    Firewall throughput rates are 4 Gbps for 1518 byte, 512 byte, and 64 byte UDP packets.
  • What is the firewall latency for 64 byte UDP packets?
    3 μs.
  • How many concurrent TCP sessions can be supported?
    The device supports up to 1.3 million concurrent TCP sessions.
  • What is the maximum power consumption?
    Maximum power consumption is 137 W.
  • What are the device dimensions?
    Height: 1.65 inches (42 mm), Width: 8.5 inches (216 mm), Length: 7 inches (178 mm).
  • What is the total available PoE power budget?
  • What is the operating temperature range?
    The operating temperature range is 32–104°F (0–40°C).
  • How does the noise level of this device compare to others in its class?
    The noise level is 35 dBA, making it suitable for environments where low noise is preferred.

Product Review

The Fortinet FG-81E-POE offers a solid balance of performance and scalability, with a firewall throughput of 4 Gbps across various packet sizes and the capacity to handle 1.3 million concurrent TCP sessions. However, its limitation lies in the relatively low firewall policies capacity (5,000) and IPsec VPN throughput (2.5 Gbps), which may restrict its application in highly dynamic or large-scale network environments. The device's design is compact, with a notable inclusion of 12 GE RJ45 PoE/+ ports, and it operates efficiently with a low average power consumption of 20 W, but its maximum power consumption can reach up to 137 W, necessitating careful consideration of power budgeting in densely populated network setups.


The Fortinet FG-81E-POE is designed to meet the needs of small to medium-sized businesses requiring secure, high-speed network connections. This model combines firewall, VPN, and various networking functions in a single device, making it an efficient solution for managing network security. At the heart of this device is a powerful firewall capable of handling up to 4 Gbps throughput across different packet sizes (1518 / 512 / 64 byte UDP packets), ensuring that data moves quickly and securely through the network. It boasts a low latency of 3 μs for 64 byte UDP packets, emphasizing its efficiency in data processing. The firewall's performance is further highlighted by its capacity to manage 6 million packets per second, support 1.3 million concurrent TCP sessions, and establish up to 30,000 new TCP sessions per second. With the ability to maintain up to 5,000 firewall policies, this device offers extensive control over network traffic. The FG-81E-POE is also equipped with significant VPN capabilities, delivering an IPsec VPN throughput of 2.5 Gbps with 512-byte packets. This feature ensures secure, remote connections, making it ideal for businesses with distributed teams or those requiring secure access to network resources from remote locations. Hardware specifications include: - 12 GE RJ45 PoE/+ ports, providing power over Ethernet to connected devices such as VoIP phones, wireless access points, and cameras, alongside 2 GE RJ45/SFP shared media pairs for flexible connectivity options. Additionally, there are 2 GE RJ45 DMZ/HA ports for specialized network configurations. - An internal 128 GB SSD for storage provides ample space for logs, reports, and other data. - The unit's compact desktop form factor, with dimensions of 1.65 inches in height, 8.5 inches in width, and 7 inches in length, allows for easy placement in various environments. - It operates on a 100–240V AC power supply, with a total PoE power budget of 110W. Average power consumption is 20W, with a maximum of 137W, making it an energy-efficient choice for businesses.
  • Heat dissipation is managed efficiently at 467.5 BTU/h, ensuring the device maintains optimal performance even under heavy load.
  • Designed to operate within a temperature range of 32–104°F (0–40°C), it is suitable for most office environments. Storage temperatures range from -31–158°F (-35–70°C), with a humidity tolerance of 10–90% non-condensing.
  • The noise level is maintained at 35 dBA, making it a quiet addition to any workspace.
In summary, the Fortinet FG-81E-POE combines advanced security features with powerful networking capabilities, enclosed in a compact, efficient package. Its extensive port selection, high throughput rates, and low power consumption make it an excellent choice for businesses looking to secure and streamline their network infrastructure.


Item Number and MakerFortinet FG-81E-POE
GE Combo RJ45/SFP Ports2
GE RJ45 Power over Ethernet Ports12
GE RJ45 Ports for DMZ/High Availability2
Storage Capacity128 GB SSD
Data Throughput Rates (1518/512/64 byte UDP)4/4/4 Gbps
Network Latency (64 byte UDP)3 μs
Throughput Capacity (Packets Per Second)6 Million
Simultaneous Sessions (TCP)1.3 Million
Session Creation Rate per Second (TCP)30,000
Number of Firewall Rules5,000
IPsec VPN Data Rate (512 byte packets)2.5 Gbps
Device Height1.65 in / 42 mm
Device Width8.5 in / 216 mm
Device Length7 in / 178 mm
Chassis TypeDesktop
Power Supply Requirements100–240V AC, 50–60 Hz
Maximum Power Available for PoE110W
Average Power Draw20 W
Peak Power Draw137 W
Maximum Current115V AC / 1.2A, 230V AC / 0.6A
Thermal Output467.5 BTU/h
Operational Temperature Range32–104°F (0–40°C)
Temperature Range for Storage-31–158°F (-35–70°C)
Humidity Level for Operation10–90% non-condensing
Audible Noise35 dBA

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