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Seagate Laptop Thin ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5" Hard Drive
- 7.00mm height, 2.5", SATA 6Gb/s
- Seagate SmartAlign technology provides easy transition to 4K sectors
- Compatible with SATA 3Gb/s designs

With 7mm z-height, the Laptop Thin HDD (formerly Momentus Thin) offers a practical storage solution for Ultrabooks, laptops and slim computing devices. It features 7200RPM spin speed, SATA III 6Gbps host interface and high speed cache, for fast data transfer and smooth experience in your everyday applications. The Laptop Thin is also a reliable storage device, courtesy of Seagate's decades of expertise in engineering and manufacturing high performance, high quality hard drives for various types of devices.
- The first 7mm, 2.5-inch drive from Seagate now supports up to 500GB of data in a single disk design.
- Standard 7mm form factor supported by a SATA 6Gb/s interface for easy integration into existing laptops

While traditional laptop hard drives offer a z-height of 9.5 mm, Laptop Thin hard drives stands apart with a z-height of just 7mm. The result is affordable, thin storage for entry-level to mainstream laptops, high-end netbooks, thin ultraportables and more. Laptop Thin drives open new frontiers in slim-computing design.

A change is coming to the hard drive industry. The smallest sector of organized data on a drive is moving from 512 to 4,096 bytes. The new format, known as Advanced Format (AF) 4K, offers advantages like increased efficiency, but makes migrating your drive can be challenging. Luckily, Seagate is ready to help you make a seamless transition to 4K sectors. Laptop Thin hard drives feature Seagate SmartAlign technology, which automatically does the work of AF migration in the background. The drive's performance is not affected, and there is no need for time-consuming utilities required by other AF-enabled drives.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 3 years
- Limited Warranty period (labor): 3 years
- Read full details
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 90 days
- This item is covered by Token Return Policy
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-800-SEAGATE
- Support Website
- View other products from Seagate
Pros: *Ultra thin form factor (7mm) *Faster than your average hard drive *Outperforms SSD's in large quantity small file transfers I decided to do a real world performance test between 3 different hard drives in order to gain a speed perspective. I put this slim drive up again a Force GT 120GB SSD & 1 TB 7200 RPM Constellation Enterprise HDD. The test consists of 3 different types of files: Large Bulk Compressed Software Image, 3 Movie Files, and a Folder with 1000+ Pictures/Files of various sizes. Results are below 1000+ Pics/Files (2.84 gb): Seagate Thin - 430 mb/s 1 TB Constellation = 84 mb/s Force GT SSD - 96 mb/s Large Compressed File (10 GB): Seagate Thin - 128mb/s 1 TB Constellation = 150 mb/s Force GT SSD - 130 mb/s 3 Movie Files (3 GB ea.): Seagate Thin - 120 mb/s 1 TB Constellation = 125 mb/s Force GT SSD - 140 mb/s I can't explain why the thin drive does so well on large numbers of small files but it was almost instantaneous and 100% reproducible every time with no info loss.
Cons: *Capacity restraint (splitting hairs here) *Fragile feeling construction
Overall Review: It's a top tier hard drive just as everyone else is saying. I would definitely recommend this drive to anyone who does not have access to a SSD. I do wish the warranty was longer though as the construction does seem a bit fragile due to the thinness.