The following is the recommended power adaptor for the R-44.
PSB-1U or PSB-100 / 120 / 230 / 240
The PSB-1U adaptor itself supports a universal input voltage (100–240 V).
PSB-100, PSB-120, PSB-230, and PSB-240 are regional sets that include an AC cord compatible with local voltage standards, and should be selected according to the region of use.
Caution: The use of any other power adaptor may cause malfunction and/or damage to the product.