PCIe 5.0 x8 CXL 2.0 memory expansion adapter supporting dual DDR5 RDIMM modules for data centers.
When AI workloads exhaust server DRAM capacity, adding traditional RAM requires costly CPU upgrades. The LRDR9G91-2I CXL memory expansion adapter solves this by extending memory via existing PCIe slots.
Supporting PCIe 5.0 x8 at 32GT/s and CXL 2.0 specification, this adapter delivers high-bandwidth memory access without latency penalties. With dual DDR5-5600 RDIMM slots supporting up to 256GB total capacity, it enables cost-effective memory scaling for memory-intensive applications while maintaining system stability under load.
Ideal for HPC clusters and cloud servers using 4th Gen Intel Xeon processors or newer, the Montage-based LRDR9G91-2I provides flexible memory tiering. This CXL adapter maximizes infrastructure ROI by decoupling memory expansion from CPU procurement cycles.
Supports PCIe 5.0 x8 interface with 32GT/s transfer rate for fast data access capabilities.
Complies with CXL 2.0 specification ensuring future scalability and interoperability.
Accommodates two DDR5-5600 RDIMM modules maximizing system memory capacity up to 256GB.
Designed with stable power supply and cooling for long-term operation in data centers.
Complete technical details for integration and deployment planning.
| Controller | Montage |
|---|
| Bus Type | PCIe 5.0 (32GT/s) x8 |
|---|---|
| Bracket Height | Low Profile & Full Height |
| Memory Type | DDR5 RDIMM |
|---|---|
| Maximum Speed | DDR5-5600 |
| Slot Quantity | 2 |
| Max Capacity Per Stick (1-Rank) | 128GB |
| Max Total Capacity (1-Rank 1DPC) | 128GB |
| Max Capacity Per Stick (2-Rank) | 128GB |
| Max Total Capacity (2-Rank 2DPC) | 256GB |
| Protocol Support | CXL 2.0, JEDEC DDR5 |
|---|
| Power Consumption (Min) | 11.184W |
|---|---|
| Power Consumption (Max) | 12.504W |
| Operating Temperature | 0℃ to 70℃ (32℉ to 158℉) |
|---|---|
| Storage Temperature | 0℃ to 70℃ (32℉ to 158℉) |
| Storage Humidity | Maximum: 90% non-condensing relative humidity at 35℃ |
| PCB Size | 180*68.9*1.6 mm |
|---|---|
| Package Size | 222*147*28 mm |
| Certifications | FCC, CE, RoHS |
|---|
| CPU Requirement | 4th generation Scalable Intel® Xeon® processors and above |
|---|---|
| OS Support | Windows 10/11, SUSE 15.4, Deepin 15.11/20/20.6/20.9, ZTE New Fulcrum 5.0.5/3.2.2, Galaxy Unicorn V10/V10 SP1, Asianux Server V7.0, Tongxin UOS 20, NeoKylin 7.6, Ubuntu 16.04.3/18.04.5/20.04.1/22.04.2, RHEL/CentOS 7.3/7.6/7.9/8.2/8.3 |
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