ISR4331-VSEC/K9 - Cisco 4000 Family Integrated Services Router
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ISR4331-VSEC/K9 Overview
ISR4331-VSEC/K9 Voice and Security Bundle
ISR4331-VSEC/K9 combines the Cisco ISR 4331 platform with voice and security bundle components. Cisco's official product listing identifies UC and security licensing and a PVDM4-32 voice DSP module for this PID. Buyers should verify the actual license state and installed DSP because entitlement migration, Smart Licensing conversion and refurbished configurations can change what is usable on delivery.
Underlying ISR 4331 Platform
Cisco's 4000 Series datasheet lists 100 Mbps aggregate default throughput, 300 Mbps with the FL-4330-PERF-K9 performance license and over 2 Gbps aggregate CEF-only throughput with Boost. The platform provides three onboard Gigabit Ethernet interfaces, two NIM slots, one ISC slot and one service-module slot. Application performance depends on traffic services and enabled security functions.
Purchase Validation
- Confirm PVDM4-32 presence and DSP health.
- Verify UC, security, HSEC and performance entitlements in the intended Cisco account.
- Check voice interface modules and licenses separately; VSEC does not define every installed NIM.
- Confirm IOS XE compatibility, support status and any migration requirements.
ISR4331-VSEC/K9 Specification
| Exact model / SKU | ISR4331-VSEC/K9 |
| Bundle type | ISR 4331 voice and security bundle |
| Voice DSP | PVDM4-32 identified in Cisco's official product listing |
| Aggregate throughput - default | 100 Mbps for the ISR 4331 platform |
| Aggregate throughput - performance license | 300 Mbps with FL-4330-PERF-K9 |
| Onboard Gigabit Ethernet | 3 ports |
| Expansion | 2 NIM slots, 1 ISC slot and 1 service-module slot |
| Source match | Exact ISR4331-VSEC/K9 bundle listing plus official ISR 4331 platform datasheet |
| Official manufacturer reference | Cisco official remanufactured networking listing |
| Datasheet series | Cisco 4000 Series Integrated Services Routers |
| Exact model | ISR4331-VSEC/K9 |
| Official datasheet | Cisco 4000 Series ISR official datasheet |
| Technical Specifications | Cisco 4461 | Cisco 4451 | Cisco 4431 | Cisco 4351 | Cisco 4331 | Cisco 4321 | Cisco 4221 | |||||||||||
| Total onboard WAN or LAN 10/100/1000 ports | 4 | 4 | 4 | 3 | 3 | 2 | 2 | |||||||||||
| Total onboard WAN or LAN 10Gbps ports | 2 | - | - | - | - | - | - | |||||||||||
| RJ-45-based ports | 4 | 4 | 4 | 3 | 2 | 2 | 2 | |||||||||||
| SFP-based ports | 4 | 4 | 4 | 3 | 2 | 1 | 1 | |||||||||||
| Enhanced service- moduleslots | 3 | 2 | 0 | 2 | 1 | 0 | 0 | |||||||||||
| Doublewide service- moduleslots | 2 | 1 (assumes no singlewide SM-X modules installed) | 0 | 1 (assumes no singlewide SM-X modules installed) | 0 | 0 | 0 | |||||||||||
| NIM slots | 3 | 3 | 3 | 3 | 2 | 2 | 2 | |||||||||||
| OIR (all I/O modules) | Yes | Yes | Yes | Yes | Yes | Yes | No | |||||||||||
| Onboard ISC slot | 1 | 1 | 1 | 1 | 1 | 1 | No | |||||||||||
| Default memory double-data- rate 3 (DDR3) error- correction- code (ECC) DRAM (Combined control/service s/data planes) | NA | NA | NA | 4 GB | 4 GB | 4 GB | 4GB | |||||||||||
| Maximum memory DDR3 ECC DRAM (Combined control/service s/data planes) | NA | NA | NA | 16 GB | 16 GB | 8 GB | 4GB | |||||||||||
| Default memory DDR3 ECC DRAM (data plane) | 4 GB | 2 GB | 2 GB | NA | NA | NA | NA | |||||||||||
| Maximum memory DDR3 ECC DRAM (data plane) | 4 GB | 2 GB | 2 GB | NA | NA | NA | NA | |||||||||||
| Default memory DDR3 ECC DRAM (control/servic es plane) | 8 GB | 4 GB | 4 GB | NA | NA | NA | NA | |||||||||||
| Maximum memory DDR3 ECC DRAM (control/servic es plane) | 32 GB | 16 GB | 16 GB | NA | NA | NA | NA | |||||||||||
| Default flash memory | 8 GB | 8 GB | 8 GB | 4 GB | 4 GB | 4 GB | 8GB | |||||||||||
| Maximum flash memory | 32 GB | 32 GB | 32 GB | 16 GB | 16 GB | 8 GB | 8GB | |||||||||||
| External USB 2.0 slots (type A) | 2 | 2 | 2 | 2 | 1 | 1 | 1 | |||||||||||
| USB console port -type B mini (up to 115.2 kbps) | 1 | 1 | 1 | 1 | 1 | 1 | 0 | |||||||||||
| Serial console port - RJ45 (up to 115.2 kbps) | 1 | 1 | 1 | 1 | 1 | 1 | 1 (combo CON/AUX port) |
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| Serial auxiliary port - RJ45 (up to 115.2 kbps) | 1 | 1 | 1 | 1 | 1 | 1 | 1 (combo CON/AUX port) |
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| Power-supply options | Internal: AC, DC and PoE | Internal: AC, DC and PoE | Internal: AC, DC, and PoE | Internal: AC, DC and PoE | Internal: AC,DC and PoE | External: AC and PoE | External AC only |
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| Redundant power supply | Internal: AC, DC and PoE | Internal: AC, DC and PoE | Internal: AC, DC, and PoE | N/A | N/A | N/A | NA | |||||||||||
| Sizes and Weights | Cisco 4461 | Cisco 4451 | Cisco 4431 | Cisco 4351 | Cisco 4331 | Cisco 4321 | Cisco 4221 | |||||||||||
| Dimensions (Hx W x D) | 3.5 x 17.25 x 18.5 in 88.9 x 438.15 x 469.9 mm) | 3.5 x 17.25 x 18.5 in (88.9 x 438.15 x 469.9 mm) | 1.73 x 17.25 x 19.97 in (43.9 x 438.15 x 507.2 mm) | 3.5 x 17.25 x 18.5 in (88.9 x 438.15 x 469.9 mm) | 1.75 x 17.25 x 17.25 in (44.45 x 438.15 x 438.15 mm) | 1.75 x 14.55 x 11.60 in (44.55 x 369.57 x 294.64 mm) | 1.72 x 12.7 x 10" (43.7 x 322.6 x 254 mm) |
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| External Power Supply Dimensions (Hx W x D) | N/A | N/A | N/A | N/A | N/A | 2.95 x 1.18 x 6.10 in (75 x 30 x 155 mm) | 37 x 73 x 152 mm (Phihong mfg PN: AA90U- 120A-R) 36.5 x 67 x 155 mm (Delta mfg PN: ADP90GR BA) |
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| Shipping Box Dimensions (Hx W x D) | 9.75 x 22.25 x 26 in (24.76 x 56.51 x 66.04 mm) | 9.75 x 22.25 x 26 in (24.76 x 56.51 x 66.04 mm) | 7.88 x 22.25 x 28.75 in (200.2 x 565.1 x 730.25 mm) | 9.75 x 22.25 x 26 in (24.76 x 56.51 x 66.04 mm) | 7.125 x 22.75 x 22.5 in (180.98 x 577.85 x 571.5 mm) | 7.0 x 21.5 x 16.125 in (177.8 x 546.1 x 409.6 mm) | 4.13 x 18.25 x 12.94" (104.9 x 463.6 x 328.7 mm) |
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| Rack height | 3 Rack Units (3RU) | 2 Rack Units (2RU) | 1 Rack Units (1RU) | 2 Rack Units (2RU) | 1 Rack Unit (1RU) | 1 Rack Unit (1RU) | 1 Rack Unit (1RU) |
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| Rack-mount 19in. (48.3 cm) EIA | Included | Included | Included | Included | Included | Included | Optional | |||||||||||
| Rack-mount 23in. (58.4 cm) EIA | Optional | Optional | Optional | Optional | Optional | N/A | NA | |||||||||||
| Wall-mount | No | No | Yes | No | Yes | Mounting holes under chassis | Yes | |||||||||||
| Weight with 1, 450-WAC power supply (no modules) | 28.8 lb (13.1 kg) | N/A | 28.8 lb (13.1 kg) | N/A | N/A | NA | ||||||||||||
| Technical Specifications | Cisco 4461 | Cisco 4451 | Cisco 4431 | Cisco 4351 | Cisco 4331 | Cisco 4321 | Cisco 4221 | |||||||||||
| Weight with 1 1,000-WAC power supply+ 1 PoE power module (no other modules) | 30.6 lb (13.9 kg) | N/A | 29.0 lb (13.2 kg) | N/A | N/A | NA | ||||||||||||
| Weight with AC PS (no modules) | N/A | 18.5 lb (8.4 kg) | N/A | 13.5 lb (6.2 kg) | 7.7 lb (3.5 kg) + 1.2 lb (0.66 kg) external PS | 7.1 lb (3.22kg) |
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| Weight with DC PS (no modules) | 28.8lb (13.1kg) | 28.8lb (13.1kg) | 28.8lb (13.1kg) | 13.5 lb (6.2 kg) | ||||||||||||||
| Weight with AC PS with POE (no modules) | N/A | 18.6 lb (8.4 kg) | N/A | 14.1 lb (6.4 kg) | N/A | NA | ||||||||||||
| Typical weight (fully loaded with modules) | 42.7 lb (19.4 kg) | 22.4 lb (10.2 kg) | 37.7 lb (17.1 kg) | 16.1 lb (7.3 kg) | 9.14 lb (4.2 kg) + 1.2 lb (0.66 kg) external PS | 8.11 lb (3.68kg) |
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| Packaging Weight | 6.4 lb (2.9 kg) | 5.9 lb (2.7 kg) | 6.4 lb (2.9 kg) | 4.6 lb (2.1 kg) | 2.2 lb (1 kg) | 1.28 lb (0.58kg) |
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| Airflow | I/O side to bezel side | I/O side to bezel side | I/O side to bezel side | I/O side to bezel side | I/O side to bezel side | Right I/O side to Left I/O side | I/O side to bezel side |
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| MTBF (Hours) | 480770 | 480770 | 512970 | 566310 | 587250 | 593270 | 593270 | |||||||||||
ISR4331-VSEC/K9 Warranty
 | Low Price Guarantee |  | Quality Assurance |
 | Free CCIE Expert Technical Support |  | Commodity Refund Guarantee |
 | Diversified and Flexible Transportation Services |  | Standard Policy |
ISR4331-VSEC/K9 FAQ
What is ISR4331-VSEC/K9?
ISR4331-VSEC/K9 - Cisco 4000 Family Integrated Services Router is a CISCO Router ISR 4000 product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
What aggregate throughput - default is listed for ISR4331-VSEC/K9?
For ISR4331-VSEC/K9, the manufacturer specification lists aggregate throughput - default as 100 Mbps for the ISR 4331 platform.
What aggregate throughput - performance license is listed for ISR4331-VSEC/K9?
For ISR4331-VSEC/K9, the manufacturer specification lists aggregate throughput - performance license as 300 Mbps with FL-4330-PERF-K9.
What interfaces and ports does ISR4331-VSEC/K9 provide?
For ISR4331-VSEC/K9, the manufacturer specification lists onboard gigabit ethernet as 3 ports.
Is ISR4331-VSEC/K9 available from YYST Global?
ISR4331-VSEC/K9 is in stock at YYST Global. Contact the sales team to confirm the required quantity, exact configuration, delivery destination and current lead time before ordering.
Related products
Related ISR4331-VSEC/K9
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