Product Attachments
Product Attachments extension allows you to attach files like: doc, videos, pdfs, and many other files with the available product and list these files...
Product Q&A/Product Questions and Answers/Product FAQ
Product Q&A/Product Questions and Answers/Product FAQ extension allows the admin to create a knowledge base on every product detail page.
Shipping & Delivery Date management with gift message
Shipping & Delivery Date management with gift message extension provides gift messaging,delivery date selection,shipping address management feature.