FPR2140-ASA-K9 – 20G ASA Firewall – 12xRJ45 4xSFP+ – Dual AC 2140

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FPR2140-ASA-K9 Description

The FPR2140-ASA-K9 is a Cisco Firepower 2100 Series ASA firewall appliance for branch and internet-edge boundaries that run Cisco ASA software. The appliance provides 20 Gbps of stateful inspection throughput (1500B UDP) and 10 Gbps multiprotocol, 12 RJ-45 and four 1/10G SFP+ ports, one network module slot and 10,000 VPN peers. ASA and Threat Defense are separate appliance models on the 2140 hardware, so this appliance runs ASA only.

Quick Specs

Parameter

Specification

Product ID

FPR2140-ASA-K9

Product type

Cisco Firepower 2140 ASA firewall appliance

Security software role

Cisco ASA software

Form factor

1RU rack-mount appliance

Fixed data ports

12 x RJ-45 and 4 x 1/10G SFP+ ports

Network module bay

1 network module slot

Maximum Ethernet interfaces

Up to 24 total Ethernet ports with network module

Storage

1 x 200 GB SSD installed; 1 spare slot for MSP

Power supply configuration

Dual 400W AC; single or dual 350W DC optional

Default power supply

Two FPR2K-PWR-AC-400 400W AC supplies included

Stateful inspection firewall throughput

20 Gbps

ASA multiprotocol firewall throughput

10 Gbps

Concurrent firewall connections

3 million

Product Performance

ASA Stateful Inspection Firewall Throughput
ASA Multiprotocol Firewall Throughput
Concurrent Firewall Connections

Key Features

ASA Throughput Ceiling Of The 2100 Line

The 2140 is the largest Firepower 2100 model for ASA, at 20 Gbps stateful inspection and 10 Gbps multiprotocol throughput. The 2130 is half of both figures, and the 2120 is 6 Gbps and 3 Gbps.

Fixed 10G Beside Copper Ports

Twelve RJ-45 ports run at 10M, 100M or 1G, and four fixed SFP+ ports run at 1G or 10G. Copper hosts and fiber uplinks connect without adding a module.

One Network Module Bay To 24 Ports

The bay takes an 8-port 1G SFP, an 8-port 10G SFP+ or a fail-to-wire module, which raises the chassis to 24 interfaces. Fail-to-wire modules pair ports 1 with 2 and 3 with 4.

Dual 400W AC Supplies

Both 400W AC supplies ship in the chassis and run 1+1 with load sharing. A 350W DC supply is the alternative, but AC and DC modules cannot share one chassis.

Context And VPN Capacity

Two security contexts are included and the limit is 40, which suits tenant separation on one firewall. VPN capacity is 2 Gbps of IPsec and 10,000 peers, and ASA high availability runs active/active or active/standby.

Serviceable Fan Tray And Storage

One hot-swappable fan tray holds four fans in 3+1 redundancy. The 200 GB SSD sits in slot 1, and slot 2 is reserved for the Malware Storage Pack.

Application Scenarios

Internet Edge For ASA Sites

A campus or regional office that already manages its perimeter with ASA can place the appliance at the internet edge, where the 20 Gbps stateful inspection figure and 3 million concurrent connections set the traffic ceiling.

Remote Access VPN Hub

A company with many branch routers and mobile users can terminate IPsec tunnels on the appliance, which supports up to 10,000 VPN peers and 2 Gbps of IPsec throughput.

Segmented Data Center Perimeter

A server room with 10G uplinks can connect the fixed SFP+ ports to its core switches and split tenants into up to 40 security contexts on the same chassis.

Product Comparison

Parameter

FPR2140-ASA-K9

FPR2140-NGFW-K9

FPR2130-ASA-K9

FPR2120-ASA-K9

Stateful inspection firewall throughput

20 Gbps

Not applicable

10 Gbps

6 Gbps

Stateful inspection firewall throughput (multiprotocol)

10 Gbps

Not applicable

5 Gbps

3 Gbps

Concurrent firewall connections

3 million

Not applicable

2 million

1.5 million

Throughput: FW + AVC + IPS (1024B)

Not applicable

10.4 Gbps

Not applicable

Not applicable

IPsec VPN throughput (450B UDP L2L test)

2 Gbps

Not applicable

1 Gbps

700 Mbps

Maximum VPN peers

10,000

10,000

7,500

3,500

Integrated I/O

12 x RJ-45 and 4 x 10 Gigabit (SFP+)

12 x RJ-45 and 4 x 10 Gigabit (SFP+)

12 x RJ-45 and 4 x 10 Gigabit (SFP+)

12 x RJ-45 and 4 x 1 Gigabit (SFP)

Network modules

1 slot

1 slot

1 slot

No slot

Power supply configuration

Dual 400W AC; single or dual 350W DC optional

Dual 400W AC; single or dual 350W DC optional

Single 400W AC; dual 400W AC optional; single or dual 350W DC optional

Single integrated 250W AC

FPR2140-ASA-K9 and FPR2140-NGFW-K9 share the same 1RU hardware, ports, network module bay and dual 400W AC supplies, and differ only in software: FPR2140-ASA-K9 is the Cisco ASA order, while FPR2140-NGFW-K9 is the Firewall Threat Defense order with no ASA throughput figures. Sites that need ASA at lower scale can use FPR2130-ASA-K9, which lists 10 Gbps of stateful inspection against 20 Gbps, 2 million connections against 3 million, and one 400W AC supply instead of two. FPR2120-ASA-K9 drops to 6 Gbps, has four 1G SFP ports and no network module slot, so it fits only branches that need neither a module nor 10G fixed uplinks.

Optional Add-ons

Model

Description

L-FPR2100-ASA=

Cisco Firepower 2100 ASA Essentials license

L-FPR2K-ASASC-5=

Cisco Firepower 2100 add-on 5 security context license

L-FPR2K-ASASC-10=

Cisco Firepower 2100 add-on 10 security context license

L-FPR2K-ENC-K9=

Cisco Firepower 2100 ASA strong encryption license when the account is not already export-authorized

FPR2K-NM-8X10G

Firepower 2100 8-port 10G SFP+ network module

FPR2K-NM-8X1G

Firepower 2100 8-port 1G SFP network module

FPR2K-NM-8X1G-F

Firepower 2100 8-port 1G copper hardware bypass network module

FPR2K-NM-6X1SX-F

Firepower 2100 6-port 1G SX fiber hardware bypass network module

FPR2K-NM-6X10SR-F

Firepower 2100 6-port 10G SR hardware bypass network module

FPR2K-NM-6X10LR-F

Firepower 2100 6-port 10G LR hardware bypass network module

FPR2K-PWR-AC-400=

400W AC power supply spare for Firepower 2130 and 2140

FPR2K-PWR-DC-350=

350W DC power supply spare for Firepower 2130 and 2140

FPR2K-FAN=

Fan tray spare for Firepower 2130 and 2140

FPR2K-SSD200=

200 GB SSD spare for Firepower 2130 and 2140

FPR-MSP-SSD=

Malware Storage Pack SSD option

FPR2K-SLIDE-RAILS=

Slide rail kit spare

Specifications

Parameter Specification Parameter Specification
Product ID FPR2140-ASA-K9 Product type Cisco Firepower 2140 ASA firewall appliance
Firewall model Firepower 2140 Security software role Cisco ASA software
Rack units 1RU rack mount Dimensions 1.73 x 16.90 x 19.76 in. (4.4 x 42.9 x 50.2 cm)
Fixed RJ-45 ports 12 x 10M/100M/1GBASE-T Fixed SFP+ ports 4 x 1/10G SFP+
Maximum Ethernet interfaces Up to 24 total Ethernet ports with network module Network module bay One network module slot
Network module options 8-port 1G SFP, 8-port 10G SFP+, and 1G or 10G fail-to-wire options Management port 1 x 10M/100M/1GBASE-T RJ-45
Console port 1 x RJ-45 console USB port 1 x USB 2.0 Type-A
Airflow Front to rear; cold aisle to I/O side SSD storage 1 x 200 GB SSD installed; second slot reserved for MSP
Power supply included Dual 400W AC power supplies Power supply options Single or dual 350W DC optional
Power redundancy 1+1 AC or DC with dual supplies AC input voltage 100 to 240V AC
AC maximum input current Less than 6A at 100V AC maximum output power 400W
AC input frequency 50 to 60 Hz DC input voltage -48V to -60VDC
DC maximum output power 350W Fan design 1 hot-swappable fan tray with 4 fans
Fan redundancy 3+1 redundant fan operation Mounting 4-post EIA-310-D rack rails included; optional 2-post brackets
Weight 9.53 kg (21 lb) with 2 power supplies, 1 network module, 1 fan module, and 2 SSDs Operating temperature 32 to 104F (0 to 40C)
Operating humidity 10 to 85% noncondensing Operating altitude 10000 ft maximum
Noise 56 dBA at 25C; 77 dBA at highest system performance Stateful inspection firewall throughput 20 Gbps
Multiprotocol firewall throughput 10 Gbps Concurrent firewall connections 3 million
New connections per second 75000 IPsec VPN throughput 2 Gbps
Maximum VPN peers 10000 Security contexts 2 included; 40 maximum
High availability Active/active and active/standby Local ASA management Adaptive Security Device Manager
Centralized ASA management Cisco Security Manager or Cisco Defense Orchestrator ASA Essentials license PID L-FPR2100-ASA=
Context license options L-FPR2K-ASASC-5= and L-FPR2K-ASASC-10= Strong encryption PID L-FPR2K-ENC-K9=
Network module ASA compatibility FPR2K-NM-8X10G from ASA 9.9 or 9.8(2)/(3); FPR2K-NM-8X1G and fail-to-wire modules from ASA 9.10

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Customer Reviews

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    Jack Müller
    Posted on 05/03/2026
    Verified Buyer
    5.0

    We compared this against our reference unit. Identical quality.

    Samantha Castillo
    Posted on 25/02/2026
    Verified Buyer
    5.0

    Don’t hesitate. Layer23 is exactly what you’re hoping to find.

    Benjamin Weber
    Posted on 28/01/2026
    Verified Buyer
    5.0

    Support after the sale is just as strong as the sales process itself.

    IT Team
    Posted on 18/08/2024
    Verified Buyer
    5.0

    Shipping to Tokyo was reasonable. Equipment is authentic.

    Network Mgr
    Posted on 02/05/2024
    Verified Buyer
    5.0

    Replacing ASA 5555-X. The 2140 is a beast. Fast boot time.

Questions & Answers

  • Can FPR2140-ASA-K9 use a 100 GB SSD, and does the second drive slot need a Malware Storage Pack?

    No. FPR2140-ASA-K9 takes only the 200 GB SSD (FPR2K-SSD200=); the 100-GB drive is restricted to the 2110 and 2120 and the two sizes cannot be mixed. Slot 2 is reserved for the Malware Storage Pack (FPR-MSP-SSD). SSD hot swap is not supported in software, so power the appliance down before replacing a drive.
  • Do I need to power down FPR2140-ASA-K9 before swapping its network module?

    Yes. Network modules on FPR2140-ASA-K9 are not hot-swappable in software, so power down before inserting or removing one. Leave FPR2K-NM-BLANK in an empty bay. The Firepower 2100 hardware maintenance guide lists module replacement as a power-down procedure for the 2140.
  • Which fail-to-wire port pairs does FPR2140-ASA-K9 support, and what happens when bypass switches?

    Fail-to-wire modules in FPR2140-ASA-K9 support only fixed pairs: port 1 with 2 and port 3 with 4. Port 1 cannot pair with port 4. Traffic can be interrupted for a few seconds when the module switches in or out of bypass. On an FPR2K-NM-8X10G module, copper SFPs fit only in the upper or the lower row, not both.
  • What circuit protection should feed the power supplies of FPR2140-ASA-K9?

    Use a protective device rated no higher than 20 A for the AC supplies, or no higher than 40 A for DC supplies, per the Firepower 2100 hardware maintenance guide. With two supplies installed, total output reaches 800 W at most, and load is shared so that either supply can carry the system alone.
  • How do I wire a 350W DC supply into FPR2140-ASA-K9?

    Use a UL 486 listed connector with 14 AWG insulated wire stripped about 10 mm (0.39 in). Terminal polarity runs left to right: negative, positive, ground. Connect the chassis ground before installing the module, and give each of two supplies its own DC source, per the Firepower 2100 hardware maintenance guide.
  • How do I remove a FPR2K-PWR-AC-400 supply from FPR2140-ASA-K9 and what covers an empty bay?

    Unplug the power cord first, because the latch cannot release while the cable is connected. Then press the latch on the right and slide the module out. An empty bay takes the FPR2K-PSU-BLANK faceplate. When refitting, secure the cord with the accessory-kit tie wrap and clamp; the tie wrap cannot be removed without damaging it.
  • Which spare PID covers the entire FPR2140-ASA-K9 chassis, and what does it exclude?

    The chassis spare PID is FPR2140-K9=. It ships without power supplies and fans, so order FPR2K-PWR-AC-400= and FPR2K-FAN= separately. Related spares are FPR2K-CBL-MGMT= for the cable management bracket, FPR2K-RM-BRKT= for rack brackets and FPR2K-RAIL-BRKT= for the slide rail bracket.
  • Is FPR2140-ASA-K9 NEBS certified, and how heavy is a fully equipped unit?

    No. FPR2140-ASA-K9 does not carry NEBS certification, per the Firepower 2100 hardware installation guide. The fully equipped chassis weighs 21 lb (9.52 kg). The FPR2K-NM-8X10G module is NEBS compatible, but that does not extend certification to the chassis.

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