There are multiple revisions of the TD-8840, each with version specific drivers, firmware, installation guides, User Guides, and other resources.

• Some Products have more than one version, for example, a name ending with V1, V2, etc. Click here to see how to discern the hardware version. The available hardware versions are shown below, please choose the right one for your device.

Hardware Version	Description
TD-8840 V4	ADSL2+ Modem Router
TD-8840 Annex A	4 ethernet port ADSL2+ router with bridge and NAT router, ADSL/ADSL2/ADSL2+, Annex A

NOTE: No upgrade between hardware versions is available.