• Cisco MEM-4320-4G DRAM 4GB with 32MB memory card, black silver components
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Cisco

Cisco MEM-4320-4G | ISR 4320 4GB DDR3 ECC DRAM, Fixed Onboard

MEM-4320-4G

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Description

The MEM-4320-4G is the 4 GB DDR3 ECC DRAM that forms the default system memory of the Cisco 4000 Series ISR 4320 Series, specifically the ISR 4321. It is soldered onto the motherboard, so it is a fixed onboard configuration rather than a user-serviceable DIMM. It suits engineers who need to identify or reference the factory memory configuration of an ISR 4321 branch-office router during service or replacement planning.

The ISR 4321 supports a combined control, services and data plane memory model, with 4 GB as the default and 8 GB as the maximum. Capacity can be raised to 8 GB using the MEM-4320-4GU8G upgrade, which keeps the fixed 4 GB and adds a further 4 GB. The host router also ships with 4 GB of default flash, expandable to 8 GB.

This memory is a passive component powered from the host router, which runs from an external AC or PoE power supply at 100-240 VAC. It needs no licence of its own. It applies to the ISR 4320 Series only, as the ISR 4330 and 4350 use different memory SKUs.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Baseline 4 GB DDR3 ECC DRAM fitted by default in the ISR 4321
- Soldered to the motherboard for a fixed onboard memory configuration
- Upgradable to 8 GB total on the ISR 4321 via MEM-4320-4GU8G, which adds a 4 GB DIMM
- Supports the ISR 4321 combined control, services and data plane memory model
- ECC memory for error correction on the host router

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Part number: MEM-4320-4G
- Description: 4G DRAM for Cisco ISR 4320 (soldered on motherboard)
- Capacity: 4 GB
- Memory type: DDR3 ECC DRAM
- Mounting: fixed, soldered on motherboard
- Default memory (ISR 4321, combined control/services/data plane): 4 GB
- Maximum memory (ISR 4321): 8 GB
- Upgrade SKU to reach 8 GB: MEM-4320-4GU8G (fixed 4G plus additional 4G)
- Host platform: Cisco ISR 4321
- Host platform default flash memory: 4 GB
- Host platform maximum flash memory: 8 GB
- Host platform typical power (no modules): 36 W
- Host platform maximum power with AC power supply: 125 W

FAQs

Q: Does this memory need a licence?
A: No. The memory itself needs no licence. The host ISR 4321 uses Cisco IOS XE licensing for its throughput tiers.

Q: Which routers is MEM-4320-4G for?
A: It is for the Cisco ISR 4320 Series, specifically the ISR 4321. The ISR 4330 and 4350 use different MEM-4300 series memory SKUs.

Q: Can I upgrade beyond 4 GB?
A: Yes, up to 8 GB total on the ISR 4321. The MEM-4320-4GU8G upgrade keeps the fixed 4 GB and adds a further 4 GB DIMM.

Q: Can this memory be replaced in the field?
A: No. It is soldered to the motherboard as the fixed onboard memory. Capacity is increased by adding the upgrade DIMM, not by swapping this memory.

Q: How is it powered?
A: It is a passive component powered from the host router. The ISR 4321 runs from an external AC or PoE power supply at 100-240 VAC.

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