O TECH SERIAL 488/4 BUS CONVERTER,SN 055718,IEEE 488,LINE VOLTAGE (INTERNAL) 105-125/210-250V,0.25/0.125A,50/60 HZ,ONLY 30VA MAX,FUSE RATING (INTERNAL) 1/4A 105-125V,1/8A 210-250V,TESTED TO POWER UP ONLY,ADDITIONAL PICTURES AND INFORMATION AVAILABLE UPON REQUEST, MADE IN THE USA