D-Link DSL-G225

114D-Link DSL-G225 Wireless N300 ADSL2+/VDSL2 Modem Router User Manual
Section 5 - Connect and Share a USB Device
Step 5 - A folder of the shared USB storage device will appear.
Congratulations
Your les are now shared. Repeat this process from each Windows PC you wish to share your USB drive with.