Shipping to Amazon FBA via "Rapid Express Freight" allows sellers to send their inventory quickly and efficiently to Amazon's fulfillment centers. This shipping method is typically used for high-volume or time-sensitive deliveries and offers faster transit times and more flexible delivery options than standard shipping methods.

When using this service, sellers will generally be responsible for coordinating the pick-up and transportation of their products to the Amazon fulfillment center. Amazon will handle the rest of the logistics, including receiving, storing, and shipping the products to customers.