Seagate Momentus 7200.4 (ST9500420AS) hard drive
Seagate's Momentus 7200.4 is a 7200rpm hard drive that will fit in a notebook
- Very fast read/write speeds, relatively good price per gigabyte
- Vibrates more than a 5400rpm laptop hard drive
The Seagate Momentus 7200.4 (ST9500420AS) is a laptop hard drive that offers faster read/write speeds than many larger desktop hard drives. If you need a fast and cool hard drive for laptops, media centre PCs or network-attached storage (NAS) devices, this is worth a look.
Price$ 217.00 (AUD)
The Seagate Momentus 7200.4 (ST9500420AS) is a 500GB 2.5in hard drive with a spin speed of 7200rpm and a 16MB cache. Despite being small enough to fit in a laptop drive bay it is faster than many 3.5in hard drives designed for desktop PCs.
The Seagate Momentus 7200.4 is faster than 5400rpm laptop drives we've tested, such as the Western Digital Scorpio Blue (WD5000BEVT) and the Seagate Momentus 5400.4 250GB (ST9250827AS). This was shown in our transfer tests.
We copied 19.4GB of files from our testbed PC, which uses a Western Digital Velociraptor (WD3000GLFS), and recorded a write speed of 77.2 megabytes per second and a read speed of 85.99MBps. Duplicating data on the Momentus hard drive (copying data from one folder on the drive to another), was achieved at a rate of 25.63MBps. This is an excellent result, especially given that many desktop hard drives such as the Hitachi Deskstar 7K1000.B (HDT721010SLA360) and the Seagate Barracuda 7200.11 1.5TB aren't as fast.
Out in the open, the Seagate Momentus 7200.4 ran at an average temperature of 30 degrees Celsius. This is nine degrees cooler than a typical 3.5in hard drive. Because it's as fast as a desktop drive and has such a large capacity, it's a good hard drive to use in a PC case in which space is at a premium (such as a media centre). The relatively low heat production means you can use a couple of these drives in a RAID array in a cramped case without worrying about them overheating.
As well as delivering faster performance, the higher spin speed results in a higher level of vibration. When we installed the Seagate Momentus 7200.4 (ST9500420AS) hard drive in a 15.4in laptop, its level of vibration was more noticeable through the palm rest than it was when we installed a 5400rpm Western Digital Scorpio (WD3200BEVT).
The Seagate Momentus 7200.4 (ST9500420AS) has a formatted capacity of 465GB and a cost per gigabyte of 47 cents. While this is expensive when compared to desktop hard drives such as the Hitachi Deskstar 7K1000.B (HDT721010SLA360), which has a cost per formatted gigabyte of 26.7 cents, it is competitive for a notebook drive. It is slightly cheaper than the 55.7 cents per formatted gigabyte of the Western Digital Scorpio Blue (WD5000BEVT).
The Seagate Momentus 7200.4 (ST9500420AS) will be useful if you're after a high-performance laptop hard drive for tasks like video editing or playing games. It's also worth a look if you're building a fast and cool media centre for your home entertainment system.
Join the newsletter!
Most Popular Reviews
- 1 Google Pixel 5 Review: Soft Reboot
- 2 Google Pixel 4a review: The Goldilocks Google phone
- 3 Samsung Galaxy Note 20 Ultra 5G review: Wrong Number
- 4 LG NANO99 NanoCell 8K TV review: Prestige at a price
- 5 LG Velvet review: Fake it till you make it
Latest News Articles
- New products round-up: Belkin, Bose and Logitech
- Intel launches 11th-gen Tiger Lake CPUs and premium laptop Evo brand
- Razer downsize their optomechanical Huntsman gaming keyboard
- Lenovo play to their strengths with ThinkVision M14T mobile monitor
- Razer refresh mecha-membrane option with new Ornata 2 keyboard
PCW Evaluation Team
Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.
This smart laptop was enjoyable to use and great to work on – creating content was super simple.
It really doesn’t get more “gaming laptop” than this.
As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.
The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.
This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.
- Best Australian Amazon Prime Day deals
- Why do gamers like RGB Lights?
- Huawei Matebook X Pro (2020) review: The real deal
- Everything you need to know about Smart TVs
- What's the difference between an Intel Core i3, i5 and i7?
- Laser vs. inkjet printers: which is better?