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Name:
SRX550-645DP-M
- Description:
- SRX550. DC PSU. 4G RAM. 8G CF
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3 Year Extended Warranty
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All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
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If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
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SRX550-645DP-M Overview
SRX550-645DP-M is a rack-mounted hardware firewall appliance delivering 6.45 Gbps of firewall throughput. It features a balanced port configuration with eight LAN ports, two WAN ports, and selectable SFP interfaces, while operating on an AC power supply with redundant backup to ensure continuous operation. The device natively supports a suite of security services including IPS, antivirus, web filtering, application control, and VPN functions.
SRX550-645DP-M is engineered for enterprise, branch office, and SMB deployments where streamlined management via CLI, GUI, SNMP, and centralized reporting is critical. Its scalable and high-availability design—with active-passive clustering support—ensures robust secure connectivity and advanced threat protection across diverse network environments.
What is the price of SRX550-645DP-M?
Pricing for SRX550-645DP-M is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for SRX550-645DP-M.
Explore more options from Firewalls or explore other Juniper products.
SRX550-645DP-M Specifications
| Product Type | Firewall Appliance |
| Architecture | Rack-mount |
| Deployment Type | Branch Office / Enterprise / SMB |
| Use Case | VPN / Secure Access / Advanced Threat Protection |
| Firewall Layer Supported | Layer 3 / Layer 4 / Layer 7 |
| Power Source | AC Power Supply |
| Redundant Power Supply Supported | Yes |
| Firewall Throughput | 6.45 Gbps |
| Threat Protection Throughput | 4.0 Gbps |
| IPS Throughput | 3.2 Gbps |
| VPN Throughput | 5.5 Gbps |
| Supported Applications | 50 |
| Centralized Configuration & Reporting | Yes |
| Feature | Application Control, Logging, Reporting |
| Concurrent Sessions | 250000 |
| Maximum Concurrent Sessions | 250000 |
| Users/Nodes | Unlimited |
| Integrated I/O | 8 |
| New Sessions Per Second | 60000 |
| Supported VPN Types | IPSec / SSL VPN |
| Routing Protocols Supported | OSPF / BGP / RIP / Static Routing |
| Security Services | Antivirus / Web Filtering / Application Control / IPS / VPN |
| High Availability | Active-Passive |
| Interfaces | RJ-45 / SFP |
| WAN Ports | 2 WAN |
| LAN Ports | 8 LAN Ports |
| Switch Ports | Yes |
| POE Ports | No |
| Management Options | CLI / GUI / SNMP / Centralized |
| Logging & Monitoring | Built-in / External / Syslog / Cloud Logging |
| Firewall Policies Supported | 1024 |
| Users Supported | 250000 |
| Memory | 8 GB |
| Flash Storage | 128 GB |
| Expansion Slots | SFP |
| Form Factor | 1 RU |
| Rack Units | 1 RU |
| Device Type | NGFW |
| Product Name | SRX550-645DP-M |
| Height | 1.75 inches |
| Width | 17.5 inches |
| Depth | 14.5 inches |
| Weight | 13 lbs |
SRX550-645DP-M Use Case
High-Availability Edge Security for Global Retail Branches
In a multinational retail chain, IT deploys the SRX550-645DP-M-SRX550 DC PSU appliance with 4 GB RAM and 8 GB CF as a hardened branch firewall. The DC power supply ensures uninterrupted operation during grid outages, while Compact Flash storage provides rapid boot and configuration recovery. Benefit: Delivers 99.99% uptime, cuts security incidents by 50%, and accelerates PoS transactions by 25%.
High-Performance VPN Hub for Multi-Region Enterprise Connectivity
A global enterprise centralizes interoffice traffic on an SRX550-645DP-M-SRX550. DC PSU. 4 G RAM. 8 G CF to terminate hundreds of encrypted IPsec tunnels. Ample RAM supports large routing tables and simultaneous SSL VPN sessions, while the DC power module guarantees resilience in carrier-neutral data centers. Outcome: Scales to 2 Gbps of encrypted throughput, reduces latency by 30%, and simplifies branch-to-cloud integration.
Industrial Control System Protection in Power Utilities
A regional utility operator secures SCADA networks with the SRX550-645DP-M-SRX550 DC PSU appliance. The integrated 4 GB RAM enables deep packet inspection of Modbus and DNP3 protocols, while the 8 GB CF logs audit trails locally for regulatory compliance. DC power compatibility allows direct integration with substation batteries. Result: Enforces microsegmentation, prevents unauthorized control-plane access, and meets NERC CIP requirements with zero downtime.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Architecture | Chassis | Virtual | Rack-mount | Rack-mount | Rack-mount |
| Centralized Configuration & Reporting | Juniper Networks Security Director | Yes | Juniper Networks Junos Space | Yes | Yes |
| Concurrent Sessions | 5 Million | 100,000 | 700000 | 250,000 | 250000 |
| Deployment Type | Enterprise / Data Center | Enterprise / Branch Office / Cloud | Enterprise / Data Center | Enterprise / Data Center | Branch Office / Enterprise / SMB |
| Depth | N/A | N/A | 28.7 inches | 15 inches | 14.5 inches |
| Device Type | NGFW | NGFW | NGFW | NGFW | NGFW |
| Expansion Slots | NP Module | N/A | SFP | SFP | SFP |
| Feature | Scalability, High Availability, Clustering | Virtualization, Clustering, High Availability | Next-Generation Firewall with integrated IPS, antivirus, and web filtering | Next-Generation Firewall | Application Control, Logging, Reporting |
| Firewall Layer Supported | Layer 3 / Layer 4 / Layer 7 | Layer 3 / Layer 4 / Layer 7 | Layer 3 / Layer 4 / Layer 7 | Layer 3 / Layer 4 / Layer 7 | Layer 3 / Layer 4 / Layer 7 |
| Firewall Policies Supported | 5000 | 500 | N/A | 200 | 1024 |
| Firewall Throughput | 400 Gbps | 1 Gbps | 40 Gbps | 4 Gbps | 6.45 Gbps |
| Flash Storage | 128 GB | 64 GB | 128 GB | 128 GB | 128 GB |
| Form Factor | Chassis | Virtual Appliance | Rack-mount | 1 RU | 1 RU |
| Height | N/A | N/A | 3.5 inches | 1.75 inches | 1.75 inches |
| High Availability | Active-Passive | Active-Passive | Active-Passive | Active-Passive | Active-Passive |
| Integrated I/O | N/A | N/A | N/A | 8 | 8 |
| Interfaces | RJ-45 / SFP / SFP+ | SFP | RJ-45 / SFP / SFP+ | RJ-45 / SFP | RJ-45 / SFP |
| IPS Throughput | 150 Gbps | 400 Mbps | 4 Gbps | 2 Gbps | 3.2 Gbps |
| LAN Ports | 4 LAN Ports | N/A | 8 LAN Ports | 8 LAN Ports | 8 LAN Ports |
| Logging & Monitoring | Built-in / External / Syslog / Cloud Logging | Built-in / Syslog | Built-in / Syslog / Cloud Logging | Built-in / Syslog | Built-in / External / Syslog / Cloud Logging |
| Management Options | Cloud / CLI / GUI / Centralized / REST API / SNMP | Cloud / CLI / GUI / Centralized / REST API / SNMP | CLI / GUI / SNMP / REST API / Centralized | CLI / GUI / SNMP | CLI / GUI / SNMP / Centralized |
| Maximum Concurrent Sessions | 10 Million | 150,000 | 1500000 | 500,000 | 250000 |
| Memory | 32 GB | 8 GB | 16 GB | 8 GB | 8 GB |
| New Sessions Per Second | 150,000 | 5,000 | 25000 | 30,000 | 60000 |
| POE Ports | No | No | No | No | No |
| Power Source | AC Power Supply | N/A | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | SRX5400X-CHAS | SRX110H2-VA | SRX4600-AC-TAA | SRX345-SYS-JE-DC | SRX550-645DP-M |
| Product Type | Firewall Appliance | Firewall Appliance | Firewall Appliance | Firewall Appliance | Firewall Appliance |
| Rack Units | N/A | N/A | 2 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | No | Yes | Yes | Yes |
| Routing Protocols Supported | OSPF / BGP / RIP / Static Routing | OSPF / BGP / RIP / Static Routing | OSPF / BGP / RIP / Static Routing | OSPF / BGP / Static Routing | OSPF / BGP / RIP / Static Routing |
| Security Services | Antivirus / Web Filtering / Application Control / IPS / VPN | Antivirus / Web Filtering / Application Control / IPS / VPN | Antivirus / Web Filtering / Application Control / IPS / VPN | Antivirus / Web Filtering / Application Control / IPS / VPN | Antivirus / Web Filtering / Application Control / IPS / VPN |
| Supported Applications | 700+ | 150 | 300 | 500 | 50 |
| Supported VPN Types | IPSec / SSL VPN / GRE | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN |
| Switch Ports | Yes | No | Yes | Yes | Yes |
| Threat Protection Throughput | 200 Gbps | 600 Mbps | 9 Gbps | 3 Gbps | 4.0 Gbps |
| Use Case | VPN / Secure Access / UTM | VPN / Secure Access / UTM | VPN / Secure Access / Segmentation / UTM | VPN / Secure Access / Segmentation / UTM | VPN / Secure Access / Advanced Threat Protection |
| Users Supported | Unlimited | Unlimited | Unlimited | Unlimited | 250000 |
| Users/Nodes | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited |
| VPN Throughput | 100 Gbps | 800 Mbps | 15 Gbps | 1.5 Gbps | 5.5 Gbps |
| WAN Ports | 2 WAN | N/A | 4 WAN | 2 WAN | 2 WAN |
| Weight | N/A | N/A | 30 lbs | 15 lbs | 13 lbs |
| Width | N/A | N/A | 17.3 inches | 17.5 inches | 17.5 inches |
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Questions & Answers
Q
What is the maximum firewall throughput of the Juniper SRX550-645DP-M?
A
The Juniper SRX550-645DP-M delivers up to 3 Gbps of firewall throughput, ensuring high-performance network security for mid-sized enterprises.
Q
How much RAM does the SRX550-645DP-M include and support?
A
The SRX550-645DP-M ships with 4 GB of DDR3 RAM and supports up to 16 GB for advanced security and VPN workloads.
Q
What type and capacity of storage does the SRX550-645DP-M feature?
A
The device includes an 8 GB Compact Flash module for boot, log storage, and persistent configuration.
Q
Which power supply does the SRX550-645DP-M use?
A
The SRX550-645DP-M is equipped with a DC power supply module, supporting standard −48 V DC inputs for telecom environments.
Q
How many network interfaces are available on the SRX550-645DP-M?
A
The SRX550-645DP-M offers eight Gigabit Ethernet ports plus two 10 GbE SFP+ ports for flexible connectivity.
Q
What built-in security services are supported by the SRX550-645DP-M?
A
It supports stateful firewalling, Intrusion Prevention System (IPS), Unified Threat Management (UTM), application security, and NAT.
Q
Can the SRX550-645DP-M handle VPN tunnels?
A
Yes, the SRX550-645DP-M supports up to 3 Gbps of IPsec VPN throughput and hundreds of concurrent tunnels.
Q
What are the ideal deployment scenarios for the SRX550-645DP-M?
A
The SRX550-645DP-M is ideal for branch offices, data centers, and mid-sized enterprises requiring high-performance security.
Q
How do I update the firmware on the SRX550-645DP-M?
A
Firmware updates can be applied via the Junos CLI or J-Web interface using the request system software add command.
Q
Does the SRX550-645DP-M support high availability configurations?
A
Yes, it supports chassis clustering in active/active or active/passive modes for resilient, state-synchronized failover.
Q
What warranty does Juniper provide for the SRX550-645DP-M?
A
Juniper offers a one-year limited hardware warranty covering defects in materials and workmanship.
Q
How does the SRX550-645DP-M differ from the SRX550H?
A
Unlike the SRX550H with hot-swappable power and fan trays, the SRX550-645DP-M uses a fixed DC PSU and fan assembly.
Q
What licensing options are available for the SRX550-645DP-M?
A
Available licenses include Services Gateway Base, Unified Threat Management, Enhanced Application Security, and Advanced IPS.
Q
Is it possible to upgrade the RAM or storage on the SRX550-645DP-M?
A
Yes, the SRX550-645DP-M supports field upgrades to DDR3 DIMMs (up to 16 GB) and larger Compact Flash modules.
Q
What is the typical power consumption of the SRX550-645DP-M?
A
Typical power consumption is approximately 200 W under full load, with a maximum draw of 400 W at peak performance.
Q
How do I connect the SRX550-645DP-M to a DC power source?
A
Connect the −48 V DC feed to the terminal block on the rear PSU, secure wiring to specification, and verify LED power indicators.
