Rioddas BT638
Score: 69/100
BPAKDU B31
Score: 82/100Rankings
The BPAKDU external CD/DVD drive combines an ultra-slim optical drive with a 4-port USB hub and dual card readers, offering fast USB 3.0 speeds and eco-friendly materials, though it may need an extra power cable for some laptops.
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.
| 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 | 12 monthsbest | |
| ↓ lower better | 2.5 Wbest | — |
| ↓ lower better | 199 gbest | 388.5 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Compatibility(1) | ||
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±R/RW, CD-ROM, DVD±R/RW, DVD‑RAM, VCD, SVCD |
General(1) | ||
Warranty Period (months) | 0 months | 12 months |
Build & Design(2) | ||
Weight (g) | 199 g | 388.5 g |
Form Factor | Portable external | Ultra‑slim portable |
Accessories(1) | ||
Included Accessories | USB drive, User manual, Type-C adapter | Carrying case, extra power cable, USB 3.0 cable |
Power & Energy(1) | ||
Power Source | USB bus powered | USB bus-powered (optional external cable) |
Connectivity(1) | ||
USB Ports (ports) | 1 ports | 2 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 its versatile 8-in-1 functionality, fast USB-3.0 interface and eco-friendly build, while noting the lack of Blu-ray and occasional power-delivery issues.
Users love the convenience of the built-in card slots and hub, but some report needing an extra power cable and wish for Blu-ray capability.
“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.”
