
Rioddas BT638
Score: 69/100
Roofull B21-Y with Case
Score: 68/100Rankings

The Rioddas External CD/DVD Drive is a compact USB 3.0 optical drive that reads and writes all common CD and DVD formats without an external power brick. It offers fast data rates, broad OS support, and a sleek brushed-metal finish, but lacks a warranty and Blu-ray capability.

The ROOFULL external drive offers versatile dual-USB Type-A/C connectivity, an integrated hub, and card readers in a slim, lightweight package, backed by a two-year warranty. It excels for users needing portable CD/DVD access and extra USB ports, though it lacks Blu-ray support and may need supplemental power on some ultrabooks.
| Attribute | ![]() | ![]() |
|---|---|---|
625 MB/sbest | 625 MB/sbest | |
8 Xbest | 8 Xbest | |
8 Xbest | 8 Xbest | |
24 Xbest | 24 Xbest | |
24 Xbest | 24 Xbest | |
0 months | 24 monthsbest | |
| ↓ lower better | 2.5 Wbest | — |
| ↓ lower better | 199 gbest | 300 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Compatibility(2) | ||
Supported Disc Formats | CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, DVD-RW, DVD+R, DVD+RW, DVD+R DL, DVD-R DL, DVD-RAM | CD-ROM, CD±R, CD±RW, VCD, SVCD, DVD-ROM, DVD±R, DVD±RW, DVD‑RAM, DVD±R DL |
Operating System Compatibility | Windows, macOS, Linux | Windows 11/10/8.1/7/Vista/XP, macOS 10.16+, Linux |
General(1) | ||
Warranty Period (months) | 0 months | 24 months |
Build & Design(1) | ||
Weight (g) | 199 g | 300 g |
Accessories(1) | ||
Included Accessories | USB drive, User manual, Type-C adapter | Carrying case, auxiliary power cable, removable dual‑connector cable, integrated cable storage |
Power & Energy(1) | ||
Power Source | USB bus powered | USB bus |
Connectivity(2) | ||
Interface Type | USB 3.0 | USB 3.0 Type-A, USB Type-C |
USB Ports (ports) | 1 ports | 9 ports |


Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the USB 3.0 interface, copper-mesh heat-dissipation and brushed-metal chassis, noting the Type-C adapter as a forward-looking feature while calling it a budget-tier solution due to the lack of Blu-ray.
Everyday users appreciate the instant plug-and-play experience, sleek look and reliable eject button, though some report occasional recognition issues and the need to keep the laptop plugged in.

Professional reviewers praise the ROOFULL drive for its versatile dual-USB Type-A/Type-C connection, built-in hub and card reader, and the inclusion of an auxiliary power cable that improves compatibility with low-power devices. The product's rigorous testing and two-year warranty are highlighted as signs of reliability.
Everyday users consistently highlight the drive's immediate plug-and-play functionality, compact form factor, and helpful customer support. Common praise centers on its ability to archive media and its integrated hub, while recurring complaints involve occasional power shortages on thin laptops and the macOS eject-button limitation.
“Plug-and-play works great on Windows 11 and macOS.”

“The drive is lightweight and fits nicely in my laptop bag.”

“Had a few disc-recognition hiccups on an older laptop.”


