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by Juniper
Product Line: Juniper J Series Routers
Product Type: Router
Original price $0.00 - Original price $186.00
Original price
$0.00 - $186.00
Current price $186.00
Title: Used

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Product Description

The J-4350-JB Juniper offers 1 Gbps+ forwarding performance for large packets and 600 Mbps for IMIX, with 3DES + SHA-1 VPN performance at 300 Mbps with hardware acceleration. It is equipped with 4 fixed Gigabit Ethernet LAN ports, 6 PIM slots, and 2 EPIM/PIM slots, and supports 1 GB or 256 MB DRAM by default, expandable to 2 GB DRAM, alongside a 256 MB compact flash, upgradeable to 1 GB. This rack-mountable device provides AC power supply options, with an average power consumption of 143W and a heat dissipation of up to 1070 BTU/hour, ensuring efficient operation within a 32°–122° F operational temperature range.

Key Feature for the J-4350-JB

  • What is the default DRAM size and its maximum expandability for this device?
    The default DRAM size is either 1 GB or 256 MB, expandable up to 2 GB.
  • How does the AC version enhance VPN performance?
    The AC version achieves 300 Mbps VPN performance with 3DES + SHA-1 using hardware acceleration.
  • Are there any options for power supply with this hardware?
    Yes, it comes with an AC power supply option rated at 100–240 VAC, 350 W.
  • What are the forwarding performance rates for large packets and IMIX?
    Forwarding performance for large packets is over 1 Gbps, and for IMIX, it is 600 Mbps.
  • What is the maximum number of PIM slots available on this device?
    The device has 4 PIM slots and an additional 2 EPIM/PIM slots, totaling a maximum of 6 PIM slots.
  • Can you describe the physical dimensions and weight of the device?
    The dimensions are 17.5 x 3.5 x 21.5 inches, and the weight is 23.0 lbs without interface modules and 25.3 lbs with 6 interface modules.
  • Is there a DC version available for this product?
    Yes, a DC version of this product is available.
  • What are the device's operational and nonoperational temperature ranges?
    Operational temperature range is 32°–122° F, and nonoperational temperature range is 4°–158° F.
  • How much compact flash memory comes by default, and what is the upgrade capacity?
    The device comes with 256 MB of compact flash memory by default, upgradeable to 1 GB.
  • What is the average power consumption and heat dissipation of this device?
    The average power consumption is 143W, and the average heat dissipation is 488 BTU/hour, with a maximum of 1070 BTU/hour.

Product Review

The Juniper J-4350-JB offers notable hardware encryption acceleration, supporting 3DES + SHA-1 VPN performance at 300 Mbps with acceleration, dropping to 30 Mbps without, catering to varying security needs. However, its default DRAM and compact flash capacities are limited at 1 GB and 256 MB, respectively, though they are expandable, which may necessitate additional investment for optimal performance. With a forwarding performance of over 1 Gbps for large packets and 600 Mbps for IMIX, alongside its capacity for up to 6 PIM and 2 EPIM slots, the device offers flexibility for network expansion but may require careful consideration of the available space and power consumption in dense network environments.


The Juniper J-4350-JB is a networking router designed for enterprises requiring reliable, high-performance connectivity. This device is equipped with hardware encryption acceleration, enhancing security and data integrity. It offers four fixed Gigabit Ethernet LAN ports for high-speed local area network connections. Additionally, the router provides flexibility through its four physical interface module (PIM) slots and two enhanced PIM (EPIM)/PIM slots, accommodating a range of network interfaces and services. Available in both AC and DC versions, the J-4350-JB caters to various power supply requirements. The router comes with 1 GB or 256 MB of DRAM by default, which can be expanded up to 2 GB for improved processing capability. Its 256 MB compact flash storage is also upgradeable to 1 GB, offering ample space for operating system and configuration file storage. Key performance metrics include a forwarding performance of over 1 Gbps for large packets and 600 Mbps for IMIX traffic, ensuring efficient data transmission across the network. The 3DES + SHA-1 VPN performance significantly benefits from hardware acceleration, reaching 300 Mbps with large packets, compared to 30 Mbps without acceleration. This demonstrates the router's capability to handle secure data transmissions efficiently.
  • Fixed I/O: 4x 10/100/1000 Ethernet ports for versatile connectivity options.
  • Maximum PIM slots: 6, and Maximum EPIM slots: 2, providing expansion capabilities to meet growing network demands.
  • Rack mountable: Yes, 2 RU, ensuring easy integration into standard network racks.
The device's dimensions are 17.5 x 3.5 x 21.5 inches, and it weighs 23.0 lbs without interface modules, increasing to 25.3 lbs with six interface modules installed. This highlights the router's compact and modular design, suitable for various operational environments. Regarding power specifications, the AC-powered model requires 100–240 VAC at 350 W, with an average power consumption of 143W. It operates efficiently within a wide range of input frequencies (47–63 Hz) and maintains low average and maximum heat dissipation rates, ensuring operational efficiency and reliability. The router's maximum current consumption is 5.7 A at 90 VAC, with a maximum inrush current of 32A. The operational temperature range is 32°–122° F, with a nonoperational temperature tolerance of 4°–158° F. This wide temperature range ensures reliability and performance stability in various environmental conditions. The device also operates optimally within a humidity range of 10%–90% noncondensing, further demonstrating its resilience in diverse operational settings. In summary, the Juniper J-4350-JB is a versatile and high-performance router designed for enterprise networks. Its expandable memory, multiple interface slots, and efficient power consumption make it a suitable choice for organizations seeking a scalable and reliable networking solution.


Item Number Juniper J-4350-JB
Manufacturer Juniper
Encryption Support Includes hardware encryption acceleration
Connectivity 4 integrated Gigabit Ethernet LAN interfaces, 4 PIM slots, 2 combined EPIM/PIM slots
Power Options AC and DC models available
Memory 1 GB or 256 MB DRAM installed, can be increased to 2 GB
Storage Starts with 256 MB compact flash, can be expanded to 1 GB
Throughput (Large Packets) Exceeds 1 Gbps
Throughput (IMIX) 600 Mbps
VPN Performance (Large Packets with Acceleration) 300 Mbps
VPN Performance (Large Packets without Acceleration) 30 Mbps
Lan Interfaces 4x 10/100/1000 Ethernet ports
PIM Slot Capacity Up to 6
EPIM Slot Capacity Up to 2
Size 17.5 x 3.5 x 21.5 inches (445 x 89 x 546 mm)
Weight (No Modules) 23.0 lbs (10.4 kg)
Weight (With 6 Modules) 25.3 lbs (11.5 kg)
Mounting Compatible with 2 RU rack installation
AC Power Supply 100–240 VAC, 350 W
Power Usage Average 143W
Input Frequency 47–63 Hz
Max Current Draw 5.7 A at 90 VAC
Peak Inrush Current 32 A
Heat Output (Average) 488 BTU/hour
Heat Output (Maximum) 1070 BTU/hour
Operating Temperature 32°–122° F (0°–50° C)
Storage Temperature 4°–158° F (-20°–70° C)
Humidity Tolerance 10%–90%, non-condensing

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