United States$5,000,000+
Inventory Delivered By
J
Jason Mullins
5
Large flash capacity made IOS management much easier.
MEM-CF-4GB=
4GB Compact Flash for Cisco 1900, 2900, 3900 ISR
FEATURED DEAL
Name:
MEM-CF-4GB=
- Description:
- 4GB Compact Flash for Cisco 1900, 2900, 3900 ISR
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 662714881292
- Condition:
- Warranty:
- 3
- List Price:
$1,840.00
- Price:
$678.0063.2% off
Quantity:
1
Business price:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
MEM-CF-4GB= Overview
MEM-CF-4GB= is a DDR4 UDIMM memory module operating at 3200 MHz with a CAS Latency of CL16 and a voltage of 1.2V. This 4 GB module comes in a single channel kit configuration, is non‐ECC and unbuffered, and is engineered for compatibility with desktop, server, and laptop platforms.
Featuring an integrated heatspreader for efficient thermal management and no RGB lighting, MEM-CF-4GB= is ideal for gaming, workstation, and server builds. It also supports Intel XMP 2.0 and is certified for Intel 12th Gen and AMD Ryzen 5000 platforms, making it a reliable choice for both general use and high-performance computing environments.
MEM-CF-4GB= price is $678.00, a 63.2% saving from the Cisco list price of $1,840.00. MEM-CF-4GB= is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for MEM-CF-4GB= for additional pricing. Browse the full 1900 & 2900 & 3900 Series Router Flash Memory series or explore all Cisco products.
MEM-CF-4GB= Specifications
- Product Type
- Computer Memory
- Memory Type
- DDR4
- Capacity
- 4 GB
- Compatible Platforms
- Desktop / Laptop / Server
- Compatible Systems
- Workstation
- Form Factor
- UDIMM
- Kit Configuration
- Single Channel
- Speed
- 3200 MHz
- Operating Temperature
- N/A
- Reliability Rating
- Standard
- CAS Latency (CL)
- CL16
- Voltage
- 1.2V
- ECC Support
- No
- Registered/Buffered
- Unbuffered
- XMP Support
- Intel XMP 2.0
- RGB Lighting
- No
- Heatsink / Heatspreader
- Yes
- Intel Platform Support
- Intel 12th Gen
- AMD Platform Support
- AMD Ryzen 5000
- Use Case
- Gaming
- Product Name
- MEM-CF-4GB=
- Height
- 1.4 inches
- Width
- 5.3 inches
- Depth
- 0.5 inches
- Weight
- 0.25 lbs
MEM-CF-4GB= Use Case
Rapid IOS Image Backup and Recovery for Remote Branches
In a multi‐site enterprise deploying Cisco 1900, 2900 or 3900 ISRs, the MEM-CF-4GB= Compact Flash stores secondary or test IOS images locally. When a remote office experiences a failed upgrade or corrupted primary image, network engineers can instantly switch to the backup image on the 4 GB CF card—reducing branch downtime from hours to minutes and ensuring business continuity.
Automated Configuration Archives for Compliance and Rollback
A regulated financial firm uses Cisco ISR 1900–3900 series routers at data‐center and branch locations. By scheduling nightly exports of running-configuration files to the MEM-CF-4GB= Compact Flash, IT teams maintain a tamper-proof archive. In case of misconfiguration or audit requests, they achieve one-click rollback and meet compliance SLAs, cutting incident resolution time by up to 70%.
On-Device Packet Capture and Security Logging for Threat Analysis
A cybersecurity operations center leverages the 4 GB MEM-CF module on Cisco 2900/3900 ISRs to locally store high-volume NetFlow logs and packet captures during perimeter breach tests. Security analysts retrieve detailed traffic records without impacting WAN performance, accelerating threat forensics and reducing mean time to detect (MTTD) by 40%, while keeping core network resources unburdened.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 MEM-CF-4GB= |  MEM-CF-256U512MB |  MEM-CF-512MB= |  MEM-CF-256U1GB |  MEM-CF-512MB | |
|---|---|---|---|---|---|
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Memory Type | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
| Capacity | 4 GB | 512 GB | 512 MB | 256 GB | 512 GB |
| Compatible Platforms | Desktop / Laptop / Server | Desktop / Laptop / Server | Desktop / Laptop / Server | Desktop / Laptop / Server | Desktop / Laptop / Server |
| Compatible Systems | Workstation | Tower Server | N/A | Workstation | Workstation |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Kit Configuration | Single Channel | Single Channel | Single Channel | Single Channel | Single Channel |
| Speed | 3200 MHz | 3200 MHz | 3200 MHz | 3200 MHz | 3200 MHz |
| Operating Temperature | N/A | N/A | N/A | N/A | N/A |
| Reliability Rating | Standard | Standard | Standard | Standard | Standard |
| CAS Latency (CL) | CL16 | CL16 | CL16 | CL16 | CL16 |
| Voltage | 1.2V | 1.35V | 1.35V | 1.35V | 1.2V |
| ECC Support | No | No | No | No | No |
| Registered/Buffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered |
| XMP Support | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 |
| RGB Lighting | No | No | No | No | No |
| Heatsink / Heatspreader | Yes | Yes | Yes | Yes | Yes |
| Intel Platform Support | Intel 12th Gen | Intel 12th Gen | Intel 13th Gen | Intel 13th Gen | Intel 12th Gen |
| AMD Platform Support | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 |
| Use Case | Gaming | Gaming | Workstation | Gaming | Gaming |
| Product Name | MEM-CF-4GB= | MEM-CF-256U512MB | MEM-CF-512MB= | MEM-CF-256U1GB | MEM-CF-512MB |
| Height | 1.4 inches | 1.2 inches | 1.2 inches | N/A | 1.2 inches |
| Width | 5.3 inches | 5.3 inches | 5.3 inches | N/A | 5.3 inches |
| Depth | 0.5 inches | 0.2 inches | 0.5 inches | N/A | 0.3 inches |
| Weight | 0.25 lbs | 0.3 lbs | 0.25 lbs | N/A | 0.35 lbs |
Reviews & Ratings
N
Noah Prescott
4
Cisco flash provided fast and reliable storage.
L
Luke Harrington
5
Handled multiple images without any slowdown.
C
Caleb Winters
3
Excellent upgrade for modern ISR requirements.
A
Andrew Wallace
4
Stable and dependable flash memory.
Questions & Answers
What is MEM-CF-4GB=?
MEM-CF-4GB= is a 4 GB industrial-grade Compact Flash module designed as upgrade memory for Cisco 1900, 2900 and 3900 series ISR routers.
Which Cisco ISR models support the 4GB Compact Flash MEM-CF-4GB=?
MEM-CF-4GB= is fully compatible with Cisco 1900, 2900 and 3900 Integrated Services Routers for IOS image storage, configuration files and logging.
How do I install MEM-CF-4GB= in a Cisco 2900 series router?
Power down the router, open the CF slot cover, insert MEM-CF-4GB= until it clicks, close the cover, then power up and verify with the ‘show file systems’ IOS command.
What are the read and write speeds of this 4GB Compact Flash?
MEM-CF-4GB= delivers sustained read speeds up to 40 MB/s and write speeds up to 30 MB/s, providing responsive performance for IOS images and logging.