Since the mpn ends in GE it appears to be a German model you are inquiring about.  Lenovo publishes all the spec sheet details for every single model.  For the E555 models, go to http://psref.lenovo.com/Product/14.  The very first link is for 20DH0008++ the model you are asking about. Follow the link and you'll see specs such as the hard disk drive which is listed to be a 500GB 7200rpm generic with no mention it being a Solid State Hybrid Drive with 8GB or SSD cache.  If you want an SSHD, SSD, or other upgrade for the E555; this site has a good price; http://cukusa.com/lenovo-thinkpad-edge-e555-20dh002qus.html#configuration and here is another http://pricespy.ie/product.php?p=2858302

Hallo, kurze Frage zum "Lenovo Thinkpad E555 Notebook" (20DH0008GE).
Laut eurem Test verfügt es über eine SSHD-Festplatte.
Genau das Model -20DH0008GE- hat laut Cyberport nur eine HDD:

https://www.cyberport.de/lenovo-e555-20dh0008ge-notebook-schwarz-amd-kaveri-a8-7100-hd-windows-8-1-1C30-3P0_1695.html

Was trifft nun zu???
Laut Cyberporthotline ist es nur eine HDD.
Allerdings habt ihr ja nun reingeschaut! ;-)

Würde mich sehr über eine Antwort freuen!

Viele Grüße