This is VintageYamahaCDR-400tx SCSI CDRWRecorderwith Power Cord in good condition. Power on, disc tray open and close. No any other testing was done. Cosmetic condition is very good. See pictures.

Yamaha's CDR400tx is a SCSI2 external CD‑R read/write drive with full Multimedia Command Set support, yet is no larger than a compact CD‑ROM player. There are few controls, other than a power switch, eject button and a couple of LEDs to indicate that the drive is ready, and whether it is reading or writing — as with all such devices, the real work is done via software.

The CDR400tx connects to the host computer via SCSI, which means that it can be used with pretty much any Mac, or with a PC that has a suitable SCSI card fitted. The SCSI ID may be set using one of those thumbwheel switches that you have to jab with a ballpoint pen instead of a thumb, and a SCSI Thru port is provided. There's no need for a terminator as a switchable, internal terminator is fitted. Unfortunately, as there are at least three possible options for the 'other end' of a SCSI2 cable, you have to provide your own, and this will cost around £20.

The CDR400tx is able to write discs at 1x, 2x or 4x speed, and can read CD‑ROMs at up to six times normal speed, which equates to a data transfer rate of 900K per second. However, the real limitation on how fast you can burn is the type of software you're running, the model and speed of your computer, and the hard drive you use for storing your audio files. Digital audio extraction is also possible at six times speed.