United States$5,000,000+
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Daniel Whitmore
5
Flash upgrade installed smoothly and provided reliable storage for IOS images.
MEM-CF-256U1GB
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Cisco Memory MEM-CF-256U1GB
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Name:
MEM-CF-256U1GB
- Description:
- Cisco Memory MEM-CF-256U1GB
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 654391969028
- Condition:
- Warranty:
- 3
- List Price:
$500.00
- Price:
$261.0047.8% off
Quantity:
1
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MEM-CF-256U1GB Overview
MEM-CF-256U1GB is a high-performance DDR4 DIMM designed for demanding desktop and workstation builds. It operates at 3200 MHz with a CAS latency of CL16 and a voltage of 1.35V, delivering consistent data processing in a single-channel kit featuring a 256 GB capacity module. This non-ECC, unbuffered memory is engineered with an integrated heatspreader to efficiently manage thermal output during intensive operations.
MEM-CF-256U1GB is optimized for a wide range of computing applications including gaming, workstation tasks, and server builds with guaranteed compatibility across desktop, server, and laptop platforms. While it does not offer RGB lighting, its robust design and Intel XMP 2.0 support ensure stable overclocking performance on modern Intel 13th Gen and AMD Ryzen 5000 systems, making it an excellent choice for users who demand reliability and speed.
MEM-CF-256U1GB price is $261.00, a 47.8% saving from the Cisco list price of $500.00. MEM-CF-256U1GB is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for MEM-CF-256U1GB for additional pricing. Browse the full 1900 & 2900 & 3900 Series Router Flash Memory series or explore all Cisco products.
MEM-CF-256U1GB Specifications
- Product Type
- Computer Memory
- Memory Type
- DDR4
- Capacity
- 256 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
- 1.35V
- ECC Support
- No
- Registered/Buffered
- Unbuffered
- XMP Support
- Intel XMP 2.0
- RGB Lighting
- No
- Heatsink / Heatspreader
- Yes
- Intel Platform Support
- Intel 13th Gen
- AMD Platform Support
- AMD Ryzen 5000
- Use Case
- Gaming
- Product Name
- MEM-CF-256U1GB
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| MEM-CF-256U1GB |  MEM-CF-2GB= |  MEM-CF-256MB= |  MEM-CF-1GB= |  MEM-CF-512MB | |
|---|---|---|---|---|---|
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Memory Type | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
| Capacity | 256 GB | 2 GB | 256 GB | 8 GB | 512 GB |
| Compatible Platforms | Desktop / Laptop / Server | Desktop / Laptop / Server | Desktop / Laptop / Server | Desktop | Desktop / Laptop / Server |
| Compatible Systems | Workstation | Workstation | Workstation | N/A | 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 | 1.35V | 1.2V | 1.35V | 1.2V | 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 13th Gen | Intel 13th Gen | Intel 12th Gen | Intel 12th 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 | Gaming | Gaming | Gaming |
| Product Name | MEM-CF-256U1GB | MEM-CF-2GB= | MEM-CF-256MB= | MEM-CF-1GB DDR4 8GB UDIMM | MEM-CF-512MB |
| Height | N/A | 1.18 inches | 1.2 inches | 1.25 inches | 1.2 inches |
| Width | N/A | 5.30 inches | 5.3 inches | 5.25 inches | 5.3 inches |
| Depth | N/A | 0.50 inches | 0.15 inches | 0.14 inches | 0.3 inches |
| Weight | N/A | 0.08 lbs | 0.3 lbs | 0.1 lbs | 0.35 lbs |
Reviews & Ratings
O
Oliver Grant
5
Cisco compact flash worked flawlessly with consistent read performance.
M
Matthew Cole
5
Good capacity for ISR routers with no compatibility issues.
R
Ryan Fletcher
5
Stable storage solution for production environments.
J
James Holloway
5
Dependable Cisco memory that performs as expected.
Questions & Answers
What is the Cisco MEM-CF-256U1GB memory card?
The Cisco MEM-CF-256U1GB is a 256 MB CompactFlash memory card designed by Cisco to expand and secure storage capacity in supported routers and switches.
Which Cisco devices support the MEM-CF-256U1GB?
The MEM-CF-256U1GB is fully compatible with Cisco Integrated Services Routers (ISR), Cisco 2600/3600/3700 series routers, and select Cisco Catalyst switches that feature a CompactFlash slot.
What are the key specifications of the MEM-CF-256U1GB?
Key specifications include 256 MB storage capacity, Type I CompactFlash form factor, industrial temperature range, and compatibility with UDMA modes for reliable performance in Cisco hardware.
How do I install the MEM-CF-256U1GB in my Cisco router?
Power off your router, locate the CompactFlash slot, insert the MEM-CF-256U1GB until it clicks, and then power on the device. The router will automatically detect the new memory.
Can I boot my Cisco IOS from the MEM-CF-256U1GB?
Yes. After installation, configure your router’s boot parameters to point to the Flash file system on the MEM-CF-256U1GB using the 'boot system flash:' command.
How do I format the MEM-CF-256U1GB on a Cisco platform?
Use the Cisco IOS command 'format flash:' to format the MEM-CF-256U1GB. Confirm the operation when prompted to complete the process.
What is the expected data transfer rate of the MEM-CF-256U1GB?
The MEM-CF-256U1GB supports Ultra DMA (UDMA) transfer modes, delivering up to 16 MB/s read/write speeds, depending on the host device’s capabilities.
Is the MEM-CF-256U1GB covered by a Cisco warranty?
Yes. The MEM-CF-256U1GB is backed by Cisco’s standard limited lifetime warranty, which covers defects in materials and workmanship.
How do I verify the MEM-CF-256U1GB is recognized by my device?
In Cisco IOS, enter 'show flash:' or 'dir flash:' to list installed memory cards. The MEM-CF-256U1GB should appear with its capacity and file system details.
Can I use the MEM-CF-256U1GB for system backups?
Yes. The MEM-CF-256U1GB is ideal for storing IOS images, configuration files, and system backups to ensure fast recovery and redundancy.
Does the MEM-CF-256U1GB support firmware upgrades?
Absolutely. You can store and run firmware or IOS image files directly from the MEM-CF-256U1GB to streamline upgrade processes on compatible Cisco devices.
What operating temperature range does the MEM-CF-256U1GB support?
The MEM-CF-256U1GB operates reliably between -25 °C and +85 °C, making it suitable for standard and industrial deployment scenarios.
How durable is the Cisco MEM-CF-256U1GB?
Designed for enterprise environments, the MEM-CF-256U1GB features shock and vibration resistance, ensuring data integrity under harsh operating conditions.
Can I upgrade from 256 MB to a larger Cisco CompactFlash card later?
Yes. You can replace the MEM-CF-256U1GB with a higher-capacity Cisco CompactFlash card. Ensure you back up data and reconfigure boot settings after installation.
Where can I purchase the MEM-CF-256U1GB?
The Cisco MEM-CF-256U1GB can be purchased through authorized Cisco resellers, online Cisco distribution partners, and official Cisco e-commerce channels.
What troubleshooting steps should I follow if the MEM-CF-256U1GB is not detected?
First, reseat the card, verify slot cleanliness, and reboot. If issues persist, test with another CompactFlash slot or card and confirm IOS compatibility and formatting.