Cisco UCS Server Memory (RAM) Upgrades

Looking for Cisco UCS compatible server RAM with fast EU delivery? CoreWave Labs offers enterprise-grade RDIMM, LRDIMM, and UDIMM modules for Cisco UCS platforms, built with Tier-1 components from Samsung, SK Hynix, and Micron—the same trusted brands used by Cisco. Every module meets JEDEC standards for compatibility and performance. We ship across Europe with typical dispatch times of 1–7 days. Upgrade with confidence—high-reliability memory without the OEM price tag.

Find Your Cisco RAM Upgrade

Form Factor
Form Factor
Memory Size
Memory Size
Memory Speed
Memory Speed
Organization
Organization
Memory Voltage
Memory Voltage
Brand
Brand
PicturePart NumberBrandSizeSpeedForm FactorPrice
M393B2G70QH0-YK0 Samsung 16GB DDR3-1600 ECC RDIMM Server Memory
Samsung16GBDDR3-1600RDIMM
M386ABG40M51-CAE Samsung 256GB DDR4-3200 ECC LRDIMM Server Memory
Samsung256GBDDR4-3200LRDIMM
M386A4G40DM0-CPB Samsung 32GB DDR4-2133 ECC LRDIMM Server Memory
Samsung32GBDDR4-2133LRDIMM
M393A8K40B22-CWD Samsung 64GB DDR4-2666 ECC RDIMM Server Memory
Samsung64GBDDR4-2666RDIMM
M393A2K40DB2-CWE Samsung 16GB DDR4-3200 ECC RDIMM Server Memory
Samsung16GBDDR4-3200RDIMM
M393B2G70EB0-YK0 Samsung 16GB DDR3-1600 ECC RDIMM Server Memory
Samsung16GBDDR3-1600RDIMM
M393A4K40BB0-CPB Samsung 32GB DDR4-2133 ECC RDIMM Server Memory
Samsung32GBDDR4-2133RDIMM
M393A2K43DB3-CWE Samsung 16GB DDR4-3200 ECC RDIMM Server Memory
Samsung16GBDDR4-3200RDIMM
M393A4K40DB2-CTD Samsung 32GB DDR4-2666 ECC RDIMM Server Memory
Samsung32GBDDR4-2666RDIMM
M393A4K40DB2-CWE Samsung 32GB DDR4-3200 ECC RDIMM Server Memory
Samsung32GBDDR4-3200RDIMM
M393A1G40DB0-CPB Samsung 8GB DDR4-2133 ECC RDIMM Server Memory
Samsung8GBDDR4-2133RDIMM
M393A2K43BB1-CTD Samsung 16GB DDR4-2666 ECC RDIMM Server Memory
Samsung16GBDDR4-2666RDIMM
M393B2G70CB0-YK0 Samsung 16GB DDR3-1600 ECC RDIMM Server Memory
Samsung16GBDDR3-1600RDIMM
M393A2K40BB1-CRC Samsung 16GB DDR4-2400 ECC RDIMM Server Memory
Samsung16GBDDR4-2400RDIMM
M393A1G43EB1-CTD Samsung 8GB DDR4-2666 ECC RDIMM Server Memory
Samsung8GBDDR4-2666RDIMM
M393A2K40CB1-CRC Samsung 16GB DDR4-2400 ECC RDIMM Server Memory
Samsung16GBDDR4-2400RDIMM
M393A2K40BB2-CTD Samsung 16GB DDR4-2666 ECC RDIMM Server Memory
Samsung16GBDDR4-2666RDIMM
M393A1G40EB1-CRC Samsung 8GB DDR4-2400 ECC RDIMM Server Memory
Samsung8GBDDR4-2400RDIMM
M393A4K40BB2-CTD Samsung 32GB DDR4-2666 ECC RDIMM Server Memory
Samsung32GBDDR4-2666RDIMM
M393A1K43DB1-CWE Samsung 8GB DDR4-3200 ECC RDIMM Server Memory
Samsung8GBDDR4-3200RDIMM

Need Help Choosing the Right RAM?

Contact our team for personalized assistance.

Browse RAM by Cisco Server Models

Access configuration details and matching modules to boost your server’s performance.

Manufactured by Industry Leaders

We offer memory modules manufactured by Samsung, SK Hynix, or Micron— the very same industry‐leading suppliers Cisco relies on. This ensures each module meets high standards for performance, compatibility, and reliability, giving you genuine, Cisco‐equivalent quality at a competitive price.

Samsung logo – manufacturer of server memory modules
SK Hynix logo – premium DDR4 and DDR5 memory manufacturer
Micron logo – trusted supplier of server-grade RAM

Cisco Server Memory FAQs

What type of RAM is compatible with Cisco UCS servers?

Cisco UCS servers typically use RDIMM or LRDIMM modules meeting JEDEC standards. Always verify memory type and speed for your specific UCS model.

Can I mix RDIMM and LRDIMM memory in a Cisco UCS server?

No. Cisco servers require either all RDIMM or all LRDIMM modules. Mixing types can cause performance or boot issues.

Can I mix memory sizes or speeds in my Cisco server?

Yes, you can mix different memory sizes or speeds, but your server generally defaults to the lowest speed. Each module’s full capacity is typically recognized, but mixing can disrupt optimal performance. For best results, install identical modules (same size, speed, and type).

Do Cisco servers require ECC memory?

Yes, most enterprise‐grade Cisco servers rely on ECC (Error‐Correcting Code) memory to detect and correct data errors, ensuring reliability in mission‐critical environments. In fact, ECC is standard in many enterprise server deployments because it helps minimize data corruption and system downtime.

How many DIMMs should I install per CPU in my Cisco server?

The ideal number depends on your server model and workload. For best performance, follow channel balancing and optimal population guidelines—usually specified in your server’s documentation. Distributing DIMMs evenly across memory channels helps maximize throughput, efficiency, and overall system stability.

Can I upgrade my Cisco server’s memory without affecting its warranty?

Yes. Most manufacturers allow memory upgrades as long as you use modules that meet the server’s official specifications. Check your Cisco server manual for approved speeds, capacities, and ECC requirements.

What are the benefits of upgrading Cisco server memory?

Increasing memory capacity and speed can boost data transfer rates, support more virtual machines, and reduce bottlenecks in data‐intensive workloads.

How fast can I receive Cisco-compatible memory across Europe?

CoreWave Labs offers fast dispatch in 1–7 days for Cisco-compatible memory modules across Europe.

Order Summary