United States$5,000,000+
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Richard Nolan
5
Major memory expansion improved overall system responsiveness.
MEM8XX-256U512D
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Cisco Memory MEM8XX-256U512D
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Name:
MEM8XX-256U512D
- Description:
- Cisco Memory MEM8XX-256U512D
- Rating:
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- Brand:
- Cisco
- GTIN:
- 12304621379
- Condition:
3 Year Extended Warranty
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MEM8XX-256U512D Overview
MEM8XX-256U512D is a cutting-edge DDR4 memory module engineered in a UDIMM form factor to deliver exceptional performance for desktop and workstation builds. This high-performance memory runs at 3200 MHz with a CAS latency of CL16 and operates at a voltage of 1.2V, making it ideal for high-demand applications while offering a robust unbuffered and non-ECC design optimized for dual channel configurations.
Designed with a heatspreader for enhanced thermal management and built to support Intel 12th Gen and AMD Ryzen 5000 platforms, MEM8XX-256U512D is suited for premium gaming and professional workstation setups. Its dual channel kit configuration ensures stability and efficiency across modern computing environments, providing a reliable solution for users seeking top-tier memory performance without RGB distractions.
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MEM8XX-256U512D Specifications
- Height
- 1.2 inches
- Width
- 5.3 inches
- Weight
- 0.3 lbs
- Depth
- 0.5 inches
- Operating Temperature
- N/A
- Product Type
- Computer Memory
- Memory Type
- DDR4
- Compatible Systems
- Workstation
- Form Factor
- UDIMM
- Kit Configuration
- Dual Channel
- Speed
- 3200 MHz
- Reliability Rating
- Standard
- CAS Latency (CL)
- CL16
- 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
- Compatible Platforms
- Desktop
- Voltage
- 1.2V
- Use Case
- Workstation
- Capacity
- 512 GB
- Product Name
- MEM8XX-256U512D
MEM8XX-256U512D Use Case
High-Speed Data Center Caching with MEM8XX-256U512D
In a hyperscale data center environment, IT architects integrate MEM8XX-256U512D-Cisco Memory modules into front-end caching appliances to accelerate packet lookup and session table management. The result is a 30% reduction in read/write latency, enabling sub-millisecond response times for web services and CDN workloads while maintaining 99.99% availability.
Cloud Virtualization Acceleration for Multi-Tenant Platforms
A leading cloud service provider deploys MEM8XX-256U512D-Cisco Memory on virtual network functions (VNFs) and hyperconverged infrastructure nodes to support rapid VM provisioning and live-migration in its multi-tenant environment. This integration delivers a 50% decrease in VM spin-up time and a 25% improvement in memory footprint efficiency, driving higher VM density and lower TCO per tenant.
Carrier-Grade Edge Routing in 5G Networks
An international telecom operator equips its 5G edge routers with MEM8XX-256U512D-Cisco Memory to handle ultra-low latency traffic and large routing tables at cell‐site gateways. The deployment achieves a 40% increase in throughput and a 20% reduction in jitter, ensuring SLA compliance for real-time services such as VoLTE, AR/VR streaming, and IoT device orchestration.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| MEM8XX-256U512D |  MEM870-4F |  MEM870-8F |  MEM870-32F |  MEM870-24U28F | |
|---|---|---|---|---|---|
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Memory Type | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
| Capacity | 512 GB | 16 GB | 16 GB | 32 GB | 16 GB |
| Compatible Platforms | Desktop | Desktop / Laptop / Server | Desktop | Desktop | Desktop / Laptop / Server |
| Compatible Systems | Workstation | Workstation | Workstation | N/A | Workstation |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Kit Configuration | Dual Channel | Dual Channel | Dual Channel | Single Channel | Dual 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 | 1.2V | 1.35V |
| 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 12th Gen | N/A | Intel 12th Gen |
| AMD Platform Support | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD Ryzen 5000 | N/A | AMD Ryzen 5000 |
| Use Case | Workstation | Gaming | Gaming | Gaming | Gaming |
| Product Name | MEM8XX-256U512D | MEM870-4F | MEM870-8F | MEM870-32F | MEM870-24U28F |
| Height | 1.2 inches | 1.2 inches | 1.2 inches | N/A | 1.2 inches |
| Width | 5.3 inches | 5.0 inches | 5.3 inches | N/A | 5.3 inches |
| Depth | 0.5 inches | 0.5 inches | 0.5 inches | N/A | 0.3 inches |
| Weight | 0.3 lbs | 0.25 lbs | 0.75 lbs | N/A | 0.5 lbs |
Reviews & Ratings
B
Brian Marshall
5
Cisco memory delivered stable performance under load.
E
Edward Price
4
Smooth upgrade process with no errors.
M
Martin Shaw
4
Good choice for upgrading older hardware.
O
Oliver Reed
4
Reliable and predictable performance.
Questions & Answers
What is the Cisco MEM8XX-256U512D memory module?
The Cisco MEM8XX-256U512D is a 256 MB ECC DRAM expansion module designed to enhance memory capacity and reliability in compatible Cisco routers and switches.
What are the key specifications of the MEM8XX-256U512D?
The MEM8XX-256U512D features 256 MB of ECC-protected DRAM, a 200 MHz clock (400 MHz DDR), industry-standard DIMM form factor, and an operating range of 0 °C to 40 °C.
Which Cisco devices are compatible with MEM8XX-256U512D?
This module is compatible with Cisco ISR 2900 and 3900 Series routers, Catalyst 3560 and 3750 Series switches, and other platforms that list MEM8XX-256U512D in their memory upgrade matrix.
How much memory capacity does MEM8XX-256U512D provide?
The MEM8XX-256U512D provides an additional 256 MB of error-correcting DRAM to your Cisco device’s onboard memory.
What memory speed does the MEM8XX-256U512D operate at?
The MEM8XX-256U512D runs at an effective data rate of 400 MHz DDR (200 MHz bus clock) to ensure stable throughput.
What type of memory is MEM8XX-256U512D?
The MEM8XX-256U512D is an ECC-enabled DDR2 SDRAM module built to Cisco specifications for high reliability.
How do I install the MEM8XX-256U512D in my Cisco device?
Power off the device, open the memory compartment, align the MEM8XX-256U512D module with the socket, press firmly until it clicks, then reassemble and power on.
Does the MEM8XX-256U512D support ECC (Error Correcting Code)?
Yes, the MEM8XX-256U512D includes ECC support to detect and correct single-bit memory errors and improve system stability.
What is the operating temperature range for MEM8XX-256U512D?
The MEM8XX-256U512D operates reliably between 0 °C and 40 °C (32 °F to 104 °F).
Is the MEM8XX-256U512D covered by Cisco’s warranty?
Yes, the MEM8XX-256U512D is backed by Cisco’s Limited Lifetime Hardware Warranty when purchased from authorized channels.
How can I verify that my MEM8XX-256U512D is genuine Cisco hardware?
Authenticate your module by checking the Cisco holographic label, matching the serial number in Cisco’s online warranty tool, and purchasing from an authorized reseller.
What performance benefits does upgrading to MEM8XX-256U512D provide?
Upgrading to MEM8XX-256U512D boosts routing and switching throughput, supports larger routing tables, and enables advanced Cisco IOS features without memory constraints.
Can I mix MEM8XX-256U512D with other memory modules in the same device?
While Cisco hardware may accept mixed modules, it is recommended to use identical MEM8XX-256U512D units to ensure matched timing and capacity for optimal stability.
What is the exact part number and SKU for this Cisco memory module?
The part number and SKU for this module are both MEM8XX-256U512D.
Where can I purchase the Cisco MEM8XX-256U512D?
You can purchase the MEM8XX-256U512D through Cisco’s official website, Cisco authorized partners, or certified networking hardware distributors.