These drives have in the past, when shucked, contained either Iron Wolf Pro or EXOS drives.
I hope this helps someone.
Added by @Sashecuador
Simple add-on storage
The Seagate Expansion External hard drive by Seagate offers an easy-to-use solution when you need to add data storage to your computer instantly.
Drag and drop file saving, right out of the box.
Fast data transfer with USB 3.0 connectivity.
The easy-to-use storage solution
The Expansion external hard drive can be installed easily by plugging in two cords. Start saving your digital files to this hard drive within seconds of removing it from the box.
Adds storage capacity instantly
Digital photos, video and music files can tax your computer’s storage, causing performance to decline as its internal hard drive fills to capacity.
Photos based on a 10 megapixel camera producing images 5 MB in size.
Songs based on average length of 4 minutes, 4 MB size.
HD video based on 720p or 1080i video.
Blu-ray HD Movie was calculated at 16.2 GB per hour recording rate.
Can be installed in seconds
Seagate Expansion External hard drive features make it easy to start using this drive within seconds of removing it from the box:
Simply plug in the included power supply and USB cable.
The hard drive is automatically recognised by the Windows operating system — no software to install and nothing to configure.
Drag and drop to save files to the Expansion external hard drive.
Built-in power management automatically ensures energy-efficient operation.
Features & details
Enjoy enormous desktop storage space for years to come for photos, movies, music and more
Designed to work with Windows computers, this external USB drive makes backup easy with a simple drag-and-drop
Setup is easy! Just connect the external hard drive to your Windows computer for automatic recognition — no software required
Includes an 18-inch USB 3.0 cable and 18W power adapter
Enjoy long-term peace of mind with the included two-year limited warranty and two-yr Rescue Data Recovery Services
Product Dimensions 17.6 x 3.66 x 12.06 cm; 950 Grams
Item model number STEB14000402
Series STEB14000402 Expansion Desktop
Form Factor 3.5-inchamazon.co.uk/gp/…FMR