4-outlet power strip with IEC connector. Uses a strong vibration damping alloy, M-2052 (commonly known as Black Metal). The outlets have been replaced with higher-quality ones than SPP-Jr, etc., by K's Lab (the list price of 59,800 yen does not include the cost of the replacement outlets, making this a great deal). Thank you for looking. Additional information: The outlet replacement and internal wiring upgrade were performed by K's Lab.