Network Security & Firewall Devices

Unprotected networks invite downtime. Finance and government teams face compliance pressure every day. Firewall devices manage traffic inspection, threat filtering, and segmentation. High-throughput inspection engines keep latency predictable. Policy enforcement protects mission-critical systems. 

Hardware acceleration supports encrypted workloads without crushing performance. Scalable rule sets ensure future growth does not overwhelm resources. Refurbished enterprise-grade units keep costs practical. Rigorous testing verifies security features under the PC Shore Performance Standard. Browse our firewall devices and secure your environment.

View as Grid List

Items 289-300 of 5357

Set Descending Direction
  1. SonicWall 02-SSC-6443 TZ370 High Availability Firewall

    In Stock

    SonicWall 02-SSC-6443 TZ370 High Availability F...
    Brand:
    SonicWall
    Mfr Part#:
    02-SSC-6443
    Condition:
    Refurbished
    $633.74
  2. SonicWall 02-SSC-2825 TZ370 Network Security/Firewall Appliance

    In Stock

    SonicWall 02-SSC-2825 TZ370 Network Security/Fi...
    Brand:
    SonicWall
    Mfr Part#:
    02-SSC-2825
    Condition:
    Refurbished
    $1,027.03
  3. Ubiquiti Networks UC-CK Unifi Controller Cloud Key

    In Stock

    Ubiquiti Networks UC-CK Unifi Controller Cloud Key
    Brand:
    Ubiquiti Networks
    Mfr Part#:
    UC-CK
    Condition:
    Refurbished
    $239.89
  4. Cisco CTI-8321-GWISDNK9 TelePresence ISDN GW MSE 8321 - gateway

    In Stock

    Cisco CTI-8321-GWISDNK9 TelePresence ISDN GW MS...
    Brand:
    Cisco
    Mfr Part#:
    CTI-8321-GWISDNK9
    Condition:
    Refurbished
    $2,923.19
  5. Cisco WAVE-694-APP-K9 Wide Area Virtualization Engine

    In Stock

    Cisco WAVE-694-APP-K9 Wide Area Virtualization ...
    Brand:
    Cisco
    Mfr Part#:
    WAVE-694-APP-K9
    Condition:
    Refurbished
    $16,082.55
  6. Cisco NME-CUE-RF Unity Express Enhanced Network Module - voice mail server

    In Stock

    Cisco NME-CUE-RF Unity Express Enhanced Network...
    Brand:
    Cisco
    Mfr Part#:
    NME-CUE-RF
    Condition:
    Refurbished
    $435.27
  7. Cisco MCS7835I3K9CMC2-RF Media Convergence Server 7835-I3 - voice/video/data server

    In Stock

    Cisco MCS7835I3K9CMC2-RF Media Convergence Serv...
    Brand:
    Cisco
    Mfr Part#:
    MCS7835I3K9CMC2-RF
    Condition:
    Refurbished
    $6,433.02
  8. Cisco MCS7835I3K9CMD3ARF Media Convergence Server 7835-I3 Unified Communications Manager Appliance - voice/video/data server

    In Stock

    Cisco MCS7835I3K9CMD3ARF Media Convergence Serv...
    Brand:
    Cisco
    Mfr Part#:
    MCS7835I3K9CMD3ARF
    Condition:
    Refurbished
    $6,433.02
  9. Cisco MCS7825I4K9CMD1-RF Media Convergence Server 7825-I4 - voice/video/data server

    In Stock

    Cisco MCS7825I4K9CMD1-RF Media Convergence Serv...
    Brand:
    Cisco
    Mfr Part#:
    MCS7825I4K9CMD1-RF
    Condition:
    Refurbished
    $3,752.60
  10. Cisco CRS-MSC-B-RF CRS-1 Modular Services Card Revision B

    In Stock

    Cisco CRS-MSC-B-RF CRS-1 Modular Services Card ...
    Brand:
    Cisco
    Mfr Part#:
    CRS-MSC-B-RF
    Condition:
    Refurbished
    $512.01
  11. Cisco MCS7845I3K9CMC2-RF Media Convergence Server 7845-I3 - voice/video/data server

    In Stock

    Cisco MCS7845I3K9CMC2-RF Media Convergence Serv...
    Brand:
    Cisco
    Mfr Part#:
    MCS7845I3K9CMC2-RF
    Condition:
    Refurbished
    $12,866.04
  12. Cisco ACE20-SBC-K9 Application Control Engine 20 for Session Border Controller

    In Stock

    Cisco ACE20-SBC-K9 Application Control Engine 2...
    Brand:
    Cisco
    Mfr Part#:
    ACE20-SBC-K9
    Condition:
    Refurbished
    $53,608.50
per page