31 of these 2-car sets built between 2011 and 2013 in Poland by Pesa Bydgoszcz SA are some of the latest trains to be acquired by the Czech Railways. Classed as 844 and given the brand "RegioShark" due to their distinctive appearance. The branding follows the same theme with other new trains - RegioElefant etc. Seen at Chrudim on 14 May 2014, set no. 844.030 is seen working train Os5366, 12:28 Slatiňany to Pardubice hl.n.