A 4TB Near-Line Serial Attached SCSI (NLSAS) hard drive intended for high-capacity storage is the Dell 400-BLEW. This 3.5-inch hot-plug hard drive rotates at 7,200 revolutions per minute (RPM) and operates at 12 Gbps to offer dependable performance and effective data transfer. It is appropriate for a range of enterprise applications because of its 512n (native) format, which provides a good balance between performance and storage capacity.