The Seagate BarraCuda ST1000LM048 is a 1TB 2.5-inch internal SATA hard drive designed for laptops, compact PCs and other systems that accept a standard 7 mm 2.5-inch SATA drive. It is a practical capacity upgrade where low-profile physical fit and broad SATA compatibility matter more than SSD-class performance.
This model combines a SATA 6Gb/s interface, 5400 RPM spindle speed and 128 MB cache, with manufacturer-rated transfer rates of up to 140 MB/s. Its 7 mm height makes it suitable for many slim notebook drive bays that cannot accept thicker 9.5 mm or 15 mm drives.
Core specifications
Capacity: 1 TB
Form factor: 2.5 inch
Interface: SATA 6Gb/s
Spindle speed: 5400 RPM
Cache: 128 MB
Maximum data transfer rate: up to 140 MB/s
Recording technology: SMR
Load/unload cycles: 600,000
QuietStep ramp-load technology
Multi-Tier Caching Technology
Physical specifications
Height: 7.0 mm
Width: 69.85 mm
Depth: 100.35 mm
Drive weight: up to approx. 90 g
Compatibility guidance
This is a 2.5-inch SATA hard drive. It requires a compatible SATA data/power connection or suitable 2.5-inch SATA enclosure. It is not an M.2, NVMe or PCIe SSD and should not be ordered as a replacement for those interfaces.
