- Module type
- DRAM
Network memoryMEM-43-4G=Memory module · Category illustrationAsk for photos of the exact model and configuration.
Use the full model, manufacturer part number and revision. Your quotation will list the condition and included components.
Plan the full memory population
Cisco MEM-43-4G= memory module
P/N MEM-43-4G=
Cisco MEM-43-4G= is a memory module. This option is specified with DRAM.
- Module type
- DRAM
- Host platform
- ISR 4300
Request pricingQuoted to your requirements
Tell us the configuration, quantity and destination. Your quotation will show availability, condition, warranty and delivery terms.
Start an order requestConfiguration helpAsk about international delivery
Cisco / PRODUCT DETAILS
Build a balanced memory population
Capacity is only the starting point. Generation, module type, rank and the host population rules determine the supported arrangement.
MEMORY CONFIGURATION
MEM-43-4G=
Module → channel → processor → system
The installed speed also depends on the processor and DIMM population.
- Host platform
- ISR 4300
Module identity
Do not mix incompatible buffered and unbuffered module types.
View all specifications →Cisco / ORDER & INSTALLATION DETAILS
Cisco PID and orderable bundle
01
Use the complete Cisco PID, including any bundle suffix.
02
Match the host platform and supported software release.
03
Identify separately ordered interfaces, optics, software and support.
Tell us about your existing equipment
Technical overview
Technical specifications
Use the full part number when comparing options or asking about system fit.
6 of 6 specifications
| Manufacturer | Cisco |
|---|---|
| Manufacturer part number | MEM-43-4G= |
| Product type | memory module |
| Ordering configuration | 4G DRAM (1 x 4G) for Cisco ISR 4300 |
| Module type | DRAM |
| Host platform | ISR 4300 |
02
HOW THIS PRODUCT FITS YOUR SYSTEM
See where it fits in your system
Choose how you plan to use this product.
Capacity expansion
Memory generation, module type and rank
Do not mix incompatible buffered and unbuffered module types.
- Memory generation, module type and rank
- Supported capacity and operating speed
- DIMM population and existing modules
Capacity expansionMEM-43-4G=
The installed speed also depends on the processor and DIMM population.
Use this checklist to describe the change. The host system and full configuration determine which parts will fit.
03
YOUR QUOTE REQUEST
Tell us what you need
Add the quantity, options and installation details you want us to quote.
Confirm the exact manufacturer part number, host compatibility and included components. Optional software is quoted separately only when requested.
04
SUPPORT & REPLACEMENT
Plan for support and future replacement
Check support dates, replacement options and whether continued use still makes sense.
Support dates
Published support schedule
- Manufacturer end of sale
- Manufacturer last support date
Manufacturer lifecycle dates apply to this order code. Availability, condition and support eligibility are confirmed with your quotation.
Checked 2026-10-12. Your service contract and product eligibility still apply.Choosing a replacement
Products with similar names or connectors may still be incompatible. Compare the full specifications, installed system and software requirements.
Compare related products These products may be related, but we have not confirmed them as replacements.What should I compare?
- Physical fit, connectors and power
- Capacity and required performance
- Software, firmware and feature support
- Licensing, service coverage and data and configuration migration
USING HARDWARE RESPONSIBLY
Maintain, redeploy or replace
Consider repairability, remaining support and actual operating demand. Extending service life is useful only when the equipment still meets your security and reliability requirements.
CONNECTION DETAILS
System compatibility and upgrade requirements
This component works inside a compatible system. Verify the host generation and supported option list before choosing memory, processors or accelerators.
CONNECTS TOSupported motherboard & chassis
MEM-43-4G=Network memory
USED FORWorkload performance
What to check before installation
- Host model, firmware and supported configuration
- Power, cooling, physical clearance and population rules
Browse the categories above for related equipment, then send us the full configuration so we can check the fit.
PRODUCT DETAILS
Features and applications
Product overview
Cisco MEM-43-4G= is a memory module. This option is specified with DRAM.
Before you order
Match the memory option to the router or supervisor hardware revision. State the installed capacity and the intended final capacity with your enquiry.
Product lifecycle
- Manufacturer end-of-sale date
- 2024-01-26
- Manufacturer last support date
- 2029-01-31
These dates describe the manufacturer lifecycle. Availability, condition and any applicable support entitlement are confirmed with your quotation.
Request a quotation
Send MEM-43-4G= with the quantity and delivery destination. We will confirm the available condition, included items, lead time and final price before you pay.
Related products and ranges
- Browse Cisco products
- Network equipment
- Cisco MEM-4300-4G= memory module
- Cisco MEM-4300-4GU16G memory module
- Cisco MEM-4300-4GU8G memory module
- Cisco MEM-4300-8G= memory module
Compare the listed specifications and target equipment before selecting another part. These links do not imply interchangeability.
Before you request a quote
Ordering and delivery
Model and quantity
Include the full model, manufacturer P/N, revision and quantity.
Your existing equipment
Tell us the host model, generation, installed configuration and required supporting hardware.
Delivery requirements
Specify condition, testing requirements, destination and requested delivery date.