Disc, USB and SD Card Duplicators

What the target count and media type tell you

A listing such as 1-to-7 means one master copied to seven targets in a single pass, so copy time stays close to that of one copy. Pick a target count that matches your usual batch. The product type tells you what the unit copies: DVD and Blu-ray towers hold several optical drives, USB models have a row of ports, SD and microSD models take cards, and hard drive duplicators clone drives. Check the unit handles the media you actually need before looking at speed.

Buffers, drives and the practical details

Optical towers contain individual burner drives, so the listed disc speeds, for example 24X DVD and 48X CD, apply to each target, and a Blu-ray tower needs Blu-ray burners. The buffer, often 128 or 256 MB, smooths the data flow so a slow master does not interrupt burns. Flash and card duplicators are limited by the slowest drive in the batch. Look at the mains rating, 115 or 230 V, the display and whether the unit is rackmount or a desktop tower. Robotic publishers that load and print discs are a different class from simple copiers.

Questions about Disc, USB and SD Card Duplicators

Does a duplicator need a computer?

Standalone units copy from a master disc, drive or card using their own controller and menu, so no computer is required. Some models can also take an image from a computer or network when you want to master from a file.

What does 1-to-7 mean on a duplicator?

One source, the master, is copied to seven targets at the same time. Common sizes include 1-to-3, 1-to-5, 1-to-7, 1-to-9 and 1-to-15, so choose the one that fits your batches and allow room for growth.

Is a USB duplicator faster than copying by computer?

For many drives at once, yes, because the controller writes to every port in parallel instead of sharing one computer's USB bus. Speed per drive is still limited by the slowest flash drive in the batch.