Cisco ASA5525-K8 Networking Security Appliance 8 Port
If you need a large quantity of ASA5525-K8 product - call us at +1 (718) 766 5269 or request a quote at live chat and our sales manager will contact you shortly.
Looking for assistance? Connect with one of our experts
FREE Shipping. We are accepting NET 30 Days Purchase Orders. Get a decision in seconds, without affecting your credit.

ASA5525-K8 Cisco ASA 5525-X 8 Ports Firewall Edition Refurbished

Availability: In Stock
Part Number#: ASA5525-K8
List Price was: $3819.23
Your Price:
You Save: $2826.23 (74% off)

3% Discount on Checkout

Short Description:
ASA5525-K8 ASA 5525-X Firewall Edition - 8 Ports - Gigabit Ethernet 10/100/1000Base-T Network Security/Firewall Appliance virtual private network (VPN) | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Features and Capabilities of Security Appliance

The Cisco ASA 5525-X Firewall Edition is a next-generation firewall appliance designed for mid-sized businesses, enterprise branch offices, and service provider networks. It provides advanced threat protection, high availability, and scalability, and can be deployed as a standalone appliance or in a cluster for increased performance and redundancy.

Here are some features and capabilities of the ASA5525-K8 Cisco ASA 5525-X Firewall Edition:

  • Firewall capabilities: The ASA5525-K8 provides advanced firewall capabilities, including stateful packet inspection, network address translation (NAT), access control lists (ACLs), and application-layer inspection.
  • VPN capabilities: The ASA5525-K8 supports a variety of VPN technologies, including site-to-site VPN, remote-access VPN, and SSL VPN. It also supports advanced encryption algorithms, such as AES, 3DES, and SHA-2.
  • Threat protection: The ASA5525-K8 provides advanced threat protection against a wide range of threats, including viruses, malware, spyware, and phishing attacks. It uses Cisco's Next-Generation Firewall (NGFW) technology, which includes intrusion prevention, file reputation, and advanced malware protection.
  • High availability: The ASA5525-K8 provides high availability features, including active/standby failover, stateful failover, and multiple ISP support. It also supports redundant power supplies and fans for added reliability.
  • Scalability: The ASA5525-K8 is highly scalable and can support up to 750 VPN peers, 5,000 concurrent connections, and 350,000 concurrent sessions.
  • Management: The ASA5525-K8 can be managed using Cisco's Adaptive Security Device Manager (ASDM) or through the command-line interface (CLI). It also supports SNMP, syslog, and NetFlow for network monitoring and management.
  • Connectivity: The ASA5525-K8 comes with 8 Gigabit Ethernet ports, which can be configured for LAN, WAN, or DMZ connectivity. It also supports expansion modules for additional connectivity options, such as fiber and copper interfaces.

Setting up Policies and Rules

The Cisco ASA 5525-X Firewall Edition is a powerful security appliance that provides advanced threat protection and comprehensive security services for organizations of all sizes. To ensure maximum protection, it is important to configure policies and rules on the firewall to control the flow of traffic and prevent unauthorized access.

Here are the steps to setting up policies and rules on the ASA5525-K8:

  • Define Access Control Lists (ACLs): Access Control Lists (ACLs) are used to define the traffic flow that is allowed or denied by the firewall. You can create ACLs based on source and destination IP addresses, ports, protocols, and other criteria. You can also group multiple ACLs into an Access Control Policy (ACP) to simplify management.
  • Create Security Zones: Security zones are logical groups of interfaces that share the same security policies. For example, you may have a DMZ zone for web servers and a LAN zone for internal users. Each zone can have its own ACLs and policies to control traffic flow.
  • Configure NAT (Network Address Translation): NAT is used to translate IP addresses between the private network and the public internet. You can configure NAT rules to allow traffic to flow from one security zone to another while hiding the internal IP addresses.
  • Set up VPNs: Virtual Private Networks (VPNs) allow remote users to securely access the internal network from outside the organization. You can configure VPN policies to control access, authentication, and encryption settings.
  • Enable Threat Detection: The ASA5525-K8 has built-in threat detection capabilities that can identify and block known and unknown threats. You can configure threat detection policies to monitor traffic and generate alerts when suspicious activity is detected.
  • Configure Logging and Reporting: Logging and reporting are essential for monitoring and troubleshooting the firewall. You can configure the firewall to log events, generate reports, and send alerts when certain conditions are met.

Securing Your Network

The Cisco ASA 5525-X Firewall Edition is a powerful network security appliance designed to protect your network from a wide range of threats. It is an 8-port gigabit Ethernet firewall appliance that is capable of delivering high-performance and highly secure connectivity for small to medium-sized businesses.

Here are some of the key features of the Cisco ASA 5525-X Firewall Edition:

  • Firewall: The firewall feature of this appliance allows you to create access control policies that restrict traffic from certain sources or to certain destinations. This helps to prevent unauthorized access to your network and keep your data safe.
  • VPN: The VPN feature of this appliance allows you to create secure connections between remote sites or users. This is especially useful for businesses that have employees working from home or remote locations.
  • Intrusion Prevention System (IPS): The IPS feature of this appliance helps to identify and prevent attacks on your network by monitoring traffic and blocking any traffic that is deemed to be malicious.
  • Content Filtering: The content filtering feature of this appliance allows you to block access to websites that are deemed to be inappropriate or malicious. This helps to prevent users from accessing content that could potentially harm your network.
  • High Availability: The high availability feature of this appliance allows you to configure a redundant system that can take over if the primary system fails. This helps to ensure that your network remains up and running at all times.
  • Advanced Malware Protection (AMP): The AMP feature of this appliance provides advanced malware protection by using machine learning algorithms to detect and block malware. This helps to prevent malware from infecting your network and causing damage.

Product Specification

  • Manufacturer: Cisco Systems, Inc
  • Manufacturer Part Number: ASA5525-K8
  • Brand Name: Cisco
  • Product Line: ASA
  • Product Series: 5500
  • Product Model ASA 5525-X
  • Product Name: ASA 5525-X Firewall Edition
  • Product Type: Network Security/Firewall Appliance

Technical Information

  • Virtualization-
  • 750 x IPsec VPN Peers
  • 2 x Premium AnyConnect VPN Peers
  • 500000 x Concurrent Connections
  • 20000 x New Connections/Second
  • 200 x Virtual Interfaces (VLANs)
  • 2 x Security Contexts
  • Firewall Protection Malware Protection
  • Firewall Protection Content Filtering
  • Firewall Protection Worm Scanning
  • Firewall Protection Application Layer Filtering
  • Firewall Protection Access Control
  • Firewall Protection Antivirus
  • Firewall Protection Anti-spyware
  • Firewall Protection Intrusion Prevention
  • Firewall Protection Remote Access Authentication
  • Encryption Standard 3DES
  • Encryption Standard AES


  • Total Number of Ports: 8
  • DSL Port: No
  • USB: Yes
  • Management Port: Yes

Network & Communication:

  • Ethernet Technology: Gigabit Ethernet
  • Network Standard: 10/100/1000Base-T
  • Wireless Specifications:
  • Wireless LAN: No

I/O Expansions:

  • Number of Total Expansion Sots 1
  • Management & Protocols-
  • Manageable: Yes


  • Standard Memory: 8 GB
  • Flash Memory: 8 GB

Power Description:

  • Input Voltage: 110 V AC
  • Input Voltage: 220 V AC
  • Power Source: Power Supply

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

A proper network security appliance is able to provide you with threat defence, new malware protection, insightful reporting, application control, and more in one solution.

With organizations getting more and more reliant on software for automation and streamlining operations, users are getting strong emotional attachments to their vendors and applications. Advanced-level appliances are thus needed to maintain the relationship between you, as an end-user, and the vendors.

Security appliances can be defined as any server appliance form that is created for the protection of your computer networks from undesired traffic. There are various types of security appliances in the market. Some of them include:

  1. Preventative devices: These scan networks and recognize probable security issues like vulnerability assessment appliances and penetration testing.
  2. Passive devices: Sense and report undesired traffic. An example is intrusion detection appliances.
  3. Unified Threat Management (UTM): Appliances bring together features making one system like content filtering, some firewalls, and web caching.
  4. Active devices: These block undesired traffic. Examples of such are anti-virus scanning devices, content filtering devices, and firewalls.

Here at AllHDD, you can find the best network security appliance by choosing from our wide variety of options, we have different products with 1 port, 2 ports, 3 ports, and up to 24 ports!

Security Appliances

There is a wide variety of appliances in the market which address most of the security concerns out there. The challenge is that all vendors claim they are able to achieve what your security requirements are. The preference is that this is done via wireless connection.

It would be great if the claims are determined to a particular degree by an independent body. The body would conduct benchmark tests to guarantee your safety if making some assumptions.

Efficiency of Security Appliances

A massive amount of code is employed in the creation of security appliances like IPS or IDS. Buffer overflows probability against a product management interface ( management module) like this one is very high. Purchasing a product like this is essential in the hostile and complex computer environment of today.

You need to be aware of the existence of exploitable problems linked with a snort. Snort is the leading Open Source Intrusion Prevention System (IPS) around the globe. It utilizes a string of rules that aid in the definition of malicious activity on the network. It then uses the rules to locate packets matching against the activities and generates you, as the user, alerts.

Snort may be positioned inline to break off these packets. It has three main uses: Like a packet sniffer such as tcpdump, like a complete network intrusion prevention system, or like a packet logger essential in debugging network traffic. You can download Snort and configure it for your business or personal use.

VPN in Security Appliances

A VPN device is a network appliance fitted with advanced security features. VPN appliance, also referred to as Secure Sockets Layer (SSL), is effectively a router offering you firewall protection, authorization, load balancing, and encryption for Virtual Private Networks.

It is a network device that uses a public telecommunication framework like the Internet to offer individual users or remote offices secured proprietary data access. One of the commonly used conventions for the management of message transmission security on the internet is SSL. An ideal VPN device should provide multi-platform functionality and central management. It should also be compatible with all crucial network applications.

Security Appliances License

In networking, a network license facilitates many users on one particular TCP/IP network to have shared access to product licenses. The installed Network License Manager (NLM) controls the issuance of licenses to users.

On starting an Autodesk product, you are required to have a license from the license server via the network. If you have a license, NLM will allocate the computer and user starting the program a license. One thus decreases the number of licenses available on the server by one.

Here, you can check more available conditions of your desired product ASA5525-K8 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


Please choose your location for calculate shipping cost.


ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.