I/O optimized (I3en) provides dense Non-Volatile Memory Express (NVMe) SSD instance storage optimized for low latency, high random I/O performance, high sequential disk throughput, and offers the lowest price per GB of SSD instance storage on Amazon EC2. It is well suited for NoSQL databases (Cassandra, MongoDB, Redis), in-memory databases (Aerospike), scale-out transactional databases, distributed file systems, data warehousing, Elasticsearch, and analytics workloads.