Both ECS large memory flavors provide a size of 104vCPU / 2948GB and 208vCPU / 5896GB processor / main memory.
It enables to operate cost-effective and flexible application with the demand to process a high amount of data with a short latency.
You can find this new flavor in the OTC Console under "Elastic Cloud Server" in the "Computing" area and here in the "Large-Memory" tab in EU-DE region.