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MEM-FD4G
Cisco 4GB PC ATA Flash Disk
TRUSTED, TRIED, PROVEN
$5,000,000+
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MEM-FD4G is a high-performance DDR4 memory module engineered in a UDIMM form factor, delivering a reliable 3200 MHz speed with a tight CL16 latency and operating at 1.35V. This 16 GB module is offered in a dual channel kit configuration, making it a robust, non-ECC, unbuffered solution that fits seamlessly into desktop, laptop, and server systems.
MEM-FD4G is tailored for a broad range of computing applications including gaming rigs, workstations, and server builds. It features an integrated heatspreader for effective thermal management, ensuring stable performance across demanding workloads, while its design intentionally excludes RGB lighting to maintain a clean aesthetic and focus on efficiency.
MEM-FD4G price is $2,656.00, a 46.9% saving from the Cisco list price of $5,000.00. MEM-FD4G is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for MEM-FD4G for additional pricing. Browse the full category range or explore all Cisco products.
| MEM-FD4G |  MEM-GRP/LC-256 |  MEM-2951-512U2.5GB |  MEM1841-128D |  MEM870-28U36F | |
|---|---|---|---|---|---|
| AMD Platform Support | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 |
| CAS Latency (CL) | CL16 | CL16 | CL16 | CL16 | CL16 |
| Capacity | 16 GB | 256 GB | 512 GB | 128 GB | 16 GB |
| Compatible Platforms | Desktop / Laptop / Server | Desktop | Desktop | Desktop / Laptop / Server | Desktop / Laptop / Server |
| Depth | 0.5 inches | 0.14 inches | 0.6 inches | 0.3 inches | 0.5 inches |
| ECC Support | No | No | No | No | No |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Heatsink / Heatspreader | Yes | Yes | Yes | Yes | Yes |
| Height | 1.25 inches | 1.2 inches | 1.2 inches | 1.2 inches | 1.2 inches |
| Intel Platform Support | Intel 12th Gen | Intel 12th Gen | Intel 12th Gen | Intel 12th Gen | Intel 10th Gen |
| Kit Configuration | Dual Channel | Dual Channel | Single Channel | Dual Channel | Dual Channel |
| Memory Type | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
| Product Name | MEM-FD4G | MEM-GRP/LC-256 | MEM-2951-512U2.5GB | MEM1841-128D | MEM870-28U36F |
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| RGB Lighting | No | No | No | No | No |
| Registered/Buffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered |
| Reliability Rating | Standard | Standard | Standard | Standard | Standard |
| Speed | 3200 MHz | 3200 MHz | 3200 MHz | 3200 MHz | 3200 MHz |
| Use Case | Gaming | Gaming | Gaming | Gaming | Gaming |
| Voltage | 1.35V | 1.35V | 1.35V | 1.35V | 1.35V |
| Weight | 0.45 lbs | 0.1 lbs | 0.2 lbs | 0.25 lbs | 0.2 lbs |
| Width | 5.3 inches | 5.3 inches | 5.3 inches | 5.3 inches | 5.3 inches |
| XMP Support | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 | Intel XMP 2.0 |
Essential for maintaining the magic of our configuration data. This 4GB flash disk fits perfectly and ensures our system boots quickly. Very high-quality build.
Logically necessary for any professional router. It provides reliable non-volatile storage for our IOS images and configurations. Sturdy construction and an excellent, precise fit.
Does exactly what it says on the tin. It stores our logs and configs without any errors. A simple but vital part for our core routers.
A wise addition to any modular system. It maintains the data integrity of the chassis with professional ease. Highly recommended for all network operators for reliable storage.
Efficient and functional. This ATA flash disk provides fast read/write speeds for our critical system files. A very necessary component for a well-maintained network.
The Cisco MEM-FD4G PC ATA Flash Disk is a 4 GB embedded flash storage module designed to expand nonvolatile memory on supported Cisco routers and switches.
The MEM-FD4G is compatible with Cisco Integrated Services Routers (ISR) 1800, 2800, 3800 series and select Catalyst switches with a PC ATA flash slot.
MEM-FD4G offers 4 GB of storage, PC ATA interface, operating temperature 0 °C to 40 °C, and a 3-year limited hardware warranty.
Power down the device, open the flash compartment, insert the MEM-FD4G module into the PC ATA slot, secure it with the retention clip, and power up the system.
No. The MEM-FD4G is preformatted by Cisco for immediate use with IOS images and file storage upon installation.
The MEM-FD4G supports Cisco’s proprietary file system (FAT16) optimized for IOS image storage and system files.
No. To prevent data corruption, you must power down the device before inserting or removing the MEM-FD4G module.
By providing dedicated flash storage for IOS images and configurations, the MEM-FD4G accelerates boot times and reduces reliance on slower storage media.
The MEM-FD4G has an MTBF of 1 million hours under normal operating conditions, ensuring high reliability.
Log into the Cisco CLI and run “show flash:” to confirm the 4 GB module is listed and accessible.
Yes. After powering down, replace the existing flash module with the MEM-FD4G to increase available nonvolatile storage.
Yes. Cisco provides a 3-year limited hardware warranty covering defects in materials and workmanship for the MEM-FD4G.
Use the Cisco CLI to copy files: “copy flash0: filename flash1: filename” or an external TFTP/FTP server to transfer IOS images and configs.
No. The MEM-FD4G is recognized natively by supported Cisco devices without additional drivers or firmware upgrades.
No. The MEM-FD4G is designed specifically for Cisco routers and switches and is not guaranteed to work with third-party equipment.
You can buy the MEM-FD4G from authorized Cisco resellers, the Cisco Online Store, or through your Cisco account representative.
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