The HPE MSA 1.8TB 12G SAS 10K 2.5IN 512E HDD (part number J9F49A) is a hot-swappable hard drive designed for enterprise storage environments. With a capacity of 1.8 TB and a SAS 12Gb/s interface, this 2.5-inch SFF drive operates at 10,000 RPM, providing a balance of performance and capacity for data-intensive applications. It is specifically intended for integration into Modular Smart Array (MSA) systems, including the 1040 Dual Controller SFF Bundle and 1040 Dual Controller SFF Storage. Its hot-swap capability minimizes downtime during maintenance or upgrades.