The D3en instance family, launched in December 2020, features 2nd Generation Intel Xeon Scalable processors (Cascade Lake) with a sustained all-core turbo frequency of up to 3.1 GHz. These storage-optimized instances provide up to 336 TB of HDD instance storage and up to 75 Gbps of network bandwidth. D3en instances are built on the AWS Nitro System and are ideal for workloads requiring high sequential I/O performance and disk throughput.