▁compute ▁cards ▁within ▁a ▁ 1 9 " ▁ra ck ▁ 2 U ▁dra wer ▁together ▁with ▁network ▁switch boards ▁for ▁external ▁storage ▁and ▁communication . ▁C ool ing ▁will ▁be ▁provided ▁via ▁the ▁Aqu as ar ▁hot ▁water ▁cool ing ▁solution ▁pione ered ▁by ▁the ▁Super M UC ▁super comput er ▁in ▁Germany . ▁ ▁The ▁designs ▁of ▁the ▁first ▁prototype ▁was ▁released ▁to ▁the ▁DO ME ▁user ▁community ▁in ▁July ▁ 3 , ▁ 2 0 1 4 . ▁The ▁P 5 0 4 0 ▁So C ▁chip , ▁ 1 6 ▁GB ▁of ▁D RAM ▁and ▁a ▁few ▁control ▁ch ips ▁( such ▁as ▁the ▁P So C ▁ 3 ▁from ▁Cy press ▁used ▁for ▁monitoring , ▁debugging ▁and ▁boot ing ) ▁compr ise ▁a ▁complete ▁compute ▁node ▁with ▁the ▁physical ▁dimensions ▁of ▁ 1 3 3 × 5 5   mm . ▁The ▁card ' s ▁p ins ▁are ▁used ▁for ▁a ▁S ATA , ▁five ▁G bit ▁and ▁two ▁ 1 0 ▁G bit ▁E ther net ▁ports , ▁one ▁SD ▁card ▁interface , ▁one ▁USB ▁ 2 ▁interface , ▁and ▁power . ▁The ▁compute ▁card ▁oper ates ▁within ▁a ▁ 3 5 ▁W ▁power ▁en velope ▁with ▁head room ▁up ▁to ▁ 7 0 ▁W . ▁The ▁bill ▁of ▁materials ▁is ▁around ▁$ 5 0 0 ▁for ▁the ▁single ▁prototype . ▁ ▁Late ▁ 2 0 1 3 ▁a ▁new ▁So C ▁was ▁chosen ▁for ▁the ▁second ▁prototype . ▁Fre esc ale ' s ▁newer ▁ 1