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by Juniper
Product Line: Juniper Networks SRX Series
Product Type: Firewall
Original price $0.00 - Original price $447.00
Original price
$0.00 - $447.00
Current price $447.00
Title: Used

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Product Description

The SRX550-645AP Juniper features 4 GB DRAM and 8 GB CF, providing efficient processing and storage capabilities for networking tasks. It supports versatile connectivity options with 6 10/100/1000BASE-T ports, 4GbE SFP ports, and includes 6 GPIM slots and 2 Mini-PIM slots for expandable network module integration. This device delivers a stateful throughput of 7 Gbps, firewall performance of 2 Gbps, and IP Sec VPN throughput of 1.0 Gbps, housed in a 2 RU form factor with a 645 watt AC power supply supporting up to 247 W PoE power.

Key Feature for the SRX550-645AP

  • What is the default DRAM size and how is it expandable?
    The default DRAM size is 4 GB, expandable to accommodate more advanced network operations and applications.
  • Can the power supply in this device support Power over Ethernet (PoE), and if so, what is the maximum PoE power available?
    Yes, the device includes one 645 watt AC power supply capable of providing up to 247 W of PoE power under redundant configuration, or 494 W nonredundant.
  • How many network and uplink ports does this device feature?
    The device features 6x 1 Gigabit Ethernet RJ-45 network ports and 4x 1 Gigabit Ethernet SFP uplink ports.
  • What are the available management options for this device?
    Management options include 1x RJ-45 Serial Console, 1x Gigabit Management port, and 2x USB 2.0 ports, along with a console mini-USB port.
  • What is the stateful throughput capability of this device?
    The stateful throughput capability of the device is 7 Gbps, supporting efficient network traffic management.
  • Describe the firewall performance and IP Sec VPN throughput.
    The firewall performance is rated at 2 Gbps using IMIX traffic, with the IP Sec VPN throughput at 1.0 Gbps, ensuring secure and efficient network communications.
  • What are the physical dimensions and weight of this networking device?
    The dimensions are 17.5 x 3.5 x 18.2 inches (44.4 x 8.8 x 46.2 cm), and the weight, including the power supply, is 21.96 lb (9.96kg).
  • How does the operational temperature range of this device compare to its nonoperational temperature range?
    Operationally, the device functions between 32° to 104° F (0° to 40° C), while nonoperationally, it can withstand temperatures from 4° to 158° F (-20° to 70° C).
  • What is the average power consumption of this device, and how does it impact its efficiency?
    The average power consumption is 122 W, indicating efficient power usage for its capabilities and performance level.
  • Can you detail the expansion capabilities in terms of GPIM and Mini-PIM slots?
    The device offers 6 GPIM slots and 2 Mini-PIM slots, facilitating a wide range of network expansion and customization options.

Product Review

The Juniper SRX550-645AP provides a solid throughput with stateful performance at 7 Gbps and IP Sec VPN throughput at 1.0 Gbps, suitable for medium-sized enterprise environments. However, its operational temperature range is limited to 0° to 40° C, potentially restricting deployment in environments with extreme temperatures. Additionally, while it offers a variety of connectivity options with 6 GPIM slots, 2 Mini-PIM slots, and multiple network ports, its power consumption averages at 122 W, which could be a consideration for energy-conscious deployments.


The Juniper SRX550-645AP is a versatile networking device designed to meet the needs of medium to large-sized enterprise networks, offering a comprehensive suite of features for advanced security, routing, and switching. This device is equipped with 4 GB of DRAM and an 8 GB Compact Flash (CF) for storage, ensuring smooth operation and sufficient space for software and configuration files. With a 2 rack unit (RU) height, the SRX550-645AP is compact enough for efficient use of space in data centers or networking closets. It features a total of 6 Gigabit Physical Interface Module (GPIM) slots and 2 Mini-Physical Interface Module (Mini-PIM) slots, providing flexibility in network design and expansion. The device comes with 6 10/100/1000BASE-T ports and 4 Gigabit Ethernet SFP ports, accommodating a variety of network connections and uplink options. Additionally, it includes dual power supply slots and fans, although it is typically configured with one 645 watt AC power supply that offers up to 247 W of Power over Ethernet (PoE) power, essential for powering connected devices like VoIP phones and wireless access points. The Juniper SRX550-645AP boasts impressive performance metrics, including a stateful throughput of 7 Gbps and firewall performance (IMIX) of 2 Gbps. It also supports IP Sec VPN throughput of up to 1.0 Gbps, facilitating secure remote access and site-to-site connections. The device's fixed I/O includes 6 x 10/100/1000 BASE-T and 4 SFP ports for versatile connectivity options. - Network Ports: 6x 1 Gigabit Ethernet RJ-45 for connecting to a wide range of network devices. - Uplink Ports: 4x 1 Gigabit Ethernet SFP for high-speed uplink connectivity. - Management Ports: Includes 1x RJ-45 Serial Console, 1x Gigabit Management, 2x USB 2.0, and 1x Console mini-USB for flexible management options. The SRX550-645AP's dimensions are 17.5 x 3.5 x 18.2 inches (44.4 x 8.8 x 46.2 cm), and it weighs 21.96 lb (9.96kg) without interface modules and with one power supply installed. It provides a 645 Watt power supply capacity, with a maximum PoE power of 247 W in redundant mode or 494 W in nonredundant mode. The average power consumption is 122 W, making it an energy-efficient option for businesses. Designed for reliability, the SRX550-645AP operates within a temperature range of 32° to 104° F (0° to 40° C) and can be stored in temperatures ranging from 4° to 158° F (-20° to 70° C). It is also built to withstand humidity levels from 5% to 95% noncondensing, ensuring durability in various environmental conditions. Overall, the Juniper SRX550-645AP stands out for its combination of performance, flexibility, and reliability, making it an ideal choice for organizations looking to secure and streamline their network infrastructure.


Item Number and ManufacturerJuniper SRX550-645AP
Memory Configuration4 GB RAM, 8 GB Compact Flash
Device Form Factor2 Rack Units High
Expansion Slot Availability6 GPIM, 2 Mini-PIM
Integrated Network Interfaces6 Gigabit Ethernet RJ-45 Connections
High-Speed Network Expansion Options4 Gigabit Ethernet SFP Interfaces
Additional Connectivity2 USB 2.0 Ports, 1 Mini-USB Console, Dual Power Supply Slots, Cooling Fans
Power Supply Specifications645W AC, 247W Available for PoE
Ethernet Ports Configuration6x Gigabit Ethernet RJ-45
Enhanced Network Ports4x Gigabit Ethernet SFP
Administrative Access Ports1x RJ-45 Serial Console, 1x Gigabit Ethernet for Management
Data Transfer Capacity7 Gbps (Stateful)
Mixed Traffic Performance2 Gbps (Firewall)
Encrypted Data Throughput1 Gbps (IPSec VPN)
Mounting Equipment2-RU Rack Mount Kit Included
Standard Interfaces6 Gigabit Ethernet Base-T and 4 SFP Ports
Physical Measurements17.5 x 3.5 x 18.2 inches (44.4 x 8.8 x 46.2 cm)
Total Weight21.96 pounds (9.96 kg) Including Power Supply, Without Modules
Power Output645 Watts Total
PoE Power Budget247 Watts Redundant Mode, 494 Watts Non-Redundant Mode
Average Consumption122 Watts
Operating Temperature Range32° to 104° F (0° to 40° C)
Storage Temperature Range4° to 158° F (-20° to 70° C)
Humidity Tolerance5% to 95%, Non-Condensing

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