Does Nintendo DS Have a USB Port? No—Proprietary Only

No. The Nintendo DS family (DS, DS Lite, DSi, DSi XL) uses:

• Game Card slot (proprietary).
• GBA slot (DS/DS Lite only).
• SD card slot (DSi/DSi XL only).

No USB host or device port exists. Data transfer to PC requires a special USB cable + cartridge adapter (e.g., NDS Backup Tool, Action Replay DS) or homebrew FTP server (CFW). Not plug-and-play.