This device is usually the Ricoh 4in1 card reader.
Have a look in your 'C' drive to see if there is a driver folder there.
Sometimes the drivers are extracted but not installed.
If you have a drivers folder in 'C', then open it and see if there is a 4in1 driver there.
Alternatively, you could right-click on the missing device and choose 'Update driver'.
On the page that appears, choose to 'Browse computer'.
On the next page choose 'Let me pick from a list'.
Select 'SD Card' from the list and see if the correct driver shows up there. If it does, select it and press next to install it.
Any help?