I'd guess SD, one USB, and one combo audio port will be the standard.

我猜测对SD卡的支持、一个USB接口，以及一个复合音频接口会是其标准。

youdao

SD card reader and configure the USB interface, user can pass throw in audio line will be it with computers, music, play device to connect.

配置了SD读卡器及USB接口，用户可以通过附赠的音频线将它与电脑等设备连接，播放音乐。

youdao

The hardware implementation of cable TV signal input, HD/SD video displaying, audio playing, storage of TV program and infrared remote-control has been resolved.

该硬件系统解决了有线电视信号输入、高清、标清视频显示、音频播放、电视节目的存储和红外遥控的硬件实现。

youdao

Roku was nice enough to upgrade our player for Amazon Video on Demand a little early, and we're basically impressed -- although we're not in love with SD video and stereo audio, it's hard to complain about a free service update.

ENGADGET: Roku Amazon Video on Demand hands-on Hands-on

The rest of the device is a plastic, candy-bar-style affair with USB, HDMI and 3.5mm audio outputs on one side, with a gain control, delete button and full-sized SD card slot on the other.

ENGADGET: Zoom Q2HD Handy Video Recorder lets you stream and record on the move, we go hands-on