• Cisco MEM-4320-4GU8G DRAM 8GB upgrade with 32MB memory card
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Cisco

Cisco MEM-4320-4GU8G | ISR 4320 8GB DRAM Memory Upgrade, 4G to 8G DIMM

MEM-4320-4GU8G

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Description

This memory upgrade is designed for the Cisco ISR 4320 series, covering the ISR 4321 in the Cisco 4000 Series Integrated Services Routers family. It adds a single 4 GB DIMM to the router's fixed 4 GB of onboard DRAM, giving 8 GB of total system memory. It suits branch deployments that run routing, VPN and security services and need more memory headroom.

The upgrade takes the system from 4 GB to 8 GB DRAM. The ISR 4320 ships with 4 GB soldered to the motherboard, and this module adds 1 x 4 GB on top of that, which is the maximum DRAM supported on the ISR 4321. The memory is DDR3 ECC. The ISR 4321 has one DIMM slot, so this is a straightforward single-module install. No licence is required for the memory itself.

For services that need at least 8 GB DRAM, such as Snort IPS, this upgrade provides the extra capacity. It works with the ISR 4320 series, and the MEM-FLSH-4U8G 4G to 8G eUSB flash upgrade is the recommended companion so core dumps can be stored.

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

Features

- Simple single-DIMM upgrade path from 4 GB to 8 GB
- Complements the fixed 4 GB onboard memory
- Gives more headroom for services such as Snort IPS, VPN and routing tables
- Reaches the maximum 8 GB DRAM supported on the ISR 4321
- Pairs with the MEM-FLSH-4U8G flash upgrade so core dumps can be stored

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-4320-4GU8G
- Description: 4G to 8G DRAM Upgrade (Fixed 4G + additional 4G) for ISR4320
- Total DRAM after upgrade: 8 GB
- Default DRAM on ISR 4320: 4 GB soldered on motherboard (MEM-4320-4G)
- Added module: 1 x 4 GB DIMM
- Maximum DRAM on ISR 4321: 8 GB
- Memory type: DDR3 ECC
- DIMM slots on ISR 4321: 1
- Compatible platform: Cisco ISR 4320 series (ISR4321)
- Recommended companion flash upgrade: MEM-FLSH-4U8G (4G to 8G eUSB flash upgrade for ISR 4300)

FAQs

Q: How much memory does the ISR 4320 have after this upgrade?
A: The router has 8 GB of total DRAM. This is the 4 GB fixed onboard memory plus the 1 x 4 GB DIMM added by this upgrade, which is the maximum supported on the ISR 4321.

Q: Do I need a licence for this memory upgrade?
A: No. The memory module itself does not require a licence.

Q: Which routers is this memory upgrade for?
A: It is for the Cisco ISR 4320 series, including the ISR 4321. The ISR 4321 has a single DIMM slot, which this module uses.

Q: Should I upgrade the flash storage as well?
A: Cisco recommends pairing this DRAM upgrade with MEM-FLSH-4U8G, the 4G to 8G eUSB flash upgrade for the ISR 4300, so that core dumps can be stored.

Q: Why upgrade from 4 GB to 8 GB DRAM?
A: The extra memory gives more headroom for branch routing, VPN and security services. Some services, such as Snort IPS, call for at least 8 GB of DRAM.

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