Which Amazon EBS volume type can be expanded to 64,000 IOPS and 1,000 MB/s throughput and offers a tiered pricing structure?

Provisioned IOPS SSD io2 volumes

Explanation

Provisioned IOPS SSD io2 and io1 volumes both can be configured to deliver up to 64,000 IOPS and 1,000 MB/s throughput, however only io2 volumes have a tiered pricing structure for your provisioned IOPS. General Purpose SSD gp3 volumes can be provisioned up to 16,000 IOPS and 1,000 MB/s throughput. Throughput Optimized HDD st1 volumes are configurable for throughput only.