1 | Electric Adaptor - USA 3-prong female to USA 2-prong male |  | Necessary if computer is 3-prong and wall plug is 2-prong. Removes AC hum when laptop is 3-prong and an older amplifier is used. |
2 | Electric Adaptor - USA 2-prong female to European 2-prong male |  | For power in Europe. |
2 | Cable - shielded 3-foot, 1/8" male to 1/8" male, stereo |  | The most common cable you'll need. Get two of them. |
1 | Cable - shielded 3-foot, Dual RCA male to Dual RCA male |  | Often two cables joined together, color-coded (one white, one red). |
1 | Connector - 1/8" female to 1/8" female, stereo |  | Useful for joining two 1/8" male to 1/8" male cables. |
2 | Connector - 1/8" female to RCA male, mono |  | |
1 | Connector - RCA female to 1/8" male, mono |  | |
1 | Connector - Dual RCA female to 1/8" male, stereo |  | |
1 | Connector - 1/8" male to dual 1/8" female, mono |  | Microphone volume splitter. |
2 | Connector - RCA female to RCA female |  | Useful for joining two RCA male to RCA male cables. |
2 | Connector - RCA male to Dual RCA female |  | |
1 | Connector - 1/4" female to 1/8" male, mono |  | |
1 | Connector - 1/4" male to Dual 1/4" female, mono |  | For splitting speaker output or microphone input. |
1 | Connector - 1/4" male to Cinch Jones female, mono |  | Only needed for connecting to old-style speaker cords. |
2 | Connector - RCA female to 1/4" male, mono |  | Commonly used for connecting to older amplifiers. |
1 | Signal Booster |  | Required to boost audio signal for older amplifiers. |
1 | USB Sound Card |  | Highly recommend. The headset output jack on my laptop broke, and a USB sound card was the only way I could get audio output. |