Network Security & Firewall Devices questions
Which Network Security & Firewall Devices brands does Memory Clearance carry?
The most listed brands in Network Security & Firewall Devices are Fortinet, SonicWall, Huawei, Juniper, Cisco and WatchGuard. Every listing names its manufacturer and part number, so you can search by either.
Are these Network Security & Firewall Devices products new or refurbished?
Both. Of the 5,902 listings, 614 state a condition: 471 are refurbished and 143 are new. The other 5,288 do not record one, so ask for it when you request a quote. The condition shown on a listing is the condition you receive.
How do I get a price on a Network Security & Firewall Devices part?
215 Network Security & Firewall Devices listings show a price you can order at. Items marked "Call for Price" have a Request for Quote button; send the part number and quantity and the sales team replies weekdays between 8:00 am and 5:00 pm PST.
How to choose a network security and firewall appliance
Sizing a firewall or unified threat management appliance starts with four checks: the firewall throughput your traffic needs, the number and speed of the network interfaces, the rack form factor available, and whether the listing is a complete appliance rather than an expansion module. This category spans 5,902 listings from 35 brands, led by Fortinet (4,814 listings), SonicWall (288), Huawei (236), Juniper (104) and Cisco (103).
Firewall throughput is the number to size against your traffic, not the port speed. A Cisco Firepower 3140 lists 45 Gbit/s of firewall throughput across 16 ports; a Firepower 3110 with the same 16-port count lists 17 Gbit/s. A Juniper SRX1600 lists 24 Gbit/s across 16 ports of 10/100/1000BASE-T and 10GBASE-X. Running IPS or deep packet inspection drops real throughput below that headline number, so size to the features you will enable. Port counts on the 30 listings with one recorded range from 4 to 30; every listing with a recorded rack form factor is 1U.
What you are buying is the physical unit. Product Type is recorded as "Network Security/Firewall Appliance" on 46 listings, matching the highest and lowest priced samples, from a Cisco Firepower 4112 appliance at the top of the range down to a Cisco ASA 5510 at the bottom: a complete rack-mount box, not a module sold alone. 140 listings are marked New and 468 Refurbished (see what each condition grade means); the remaining 5,294 record no condition, so ask for it when you request a quote. 215 listings carry an online price; the rest show a Request for Quote button, answered weekdays 8:00 am to 5:00 pm PST on (800) 733-1169.
None of this hardware protects anything on its own for long. A firewall's signature feed, threat intelligence updates and firmware patches come from the vendor, usually tied to an active service contract registered to its serial number; once support lapses, the box stops getting them. Several listings here are Cisco Meraki MX units, cloud-managed appliances that depend on an active vendor licence, not just firmware, to keep functioning. Memory Clearance sells the physical appliance; it does not sell, transfer or guarantee any vendor subscription, support contract, licence or current firmware state. Confirm entitlement to updates and support with the manufacturer, using the serial number, before buying, and read the end of life and end of service life guide.
Network security and firewall appliance buying questions
Does a used firewall appliance come with an active support licence or current firmware?
No. The manufacturer sets entitlement to signature feeds, threat updates, firmware and support, and it is normally tied to the unit's serial number and the original buyer's contract, not to the physical hardware. Memory Clearance sells the appliance itself. Confirm current licence and support status directly with the vendor, using the serial number, before you order one for anything that needs live protection.
How do I size firewall throughput correctly?
Compare the "Firewall Throughput" figure against real traffic with the features you plan to run turned on, not the raw port speed. A Cisco Firepower 3140 lists 45 Gbit/s, a Firepower 3110 lists 17 Gbit/s on the same 16 ports; IPS and deep packet inspection reduce that number further, so leave headroom rather than sizing to interface speed alone.
Is a refurbished firewall appliance safe to run in production?
The hardware is graded like any other refurbished network gear, and its condition is stated on the listing where one is recorded. What determines whether it is safe against current threats is not its age or grade but whether it can still receive vendor signature and firmware updates, which depends on active support entitlement confirmed with the manufacturer, separate from the unit's physical condition.
How do I replace an end-of-life firewall with the right part number?
Start from the exact model or part number on the original unit, such as an ASA5510-BUN-K9 or an SRX345-SYS-JB, and search or quote that number; the part number guide explains how OEM numbers map to a model and revision. If the platform is past end of life, confirm what that means for support before deciding whether to keep it running or move to a currently supported model.
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