What is the scope of a search warrant for a search of computers, computers, compact disks, hard drives, memory cards, and other digital devices pursuant to the search warrant?

We have repeatedly found equally broad searches constitutional on similar or less evidence. See, e.g., United States v. Krupa, 658 F.3d 1174, 1178 (9th Cir. 2011) (holding valid a search of fifteen computers at a residence based on evidence of one contraband image and a report of child neglect); United States v. Brobst, 558 F.3d 982, 993-94 (9th Cir. 2009) (holding valid a warrant authorizing the search and seizure of photographs, computers, compact disks, floppy disks, hard drives, memory cards, printers, other portable digital devices, DVDs, and video tapes based on a witness's observation of one illicit photograph in defendant's home); Lacy, 119 F.3d at 746 (9th Cir. 1997) (holding valid a warrant authorizing the "blanket seizure" of Lacy's "entire computer system" because the government did not know where at least two illicit child pornography images were stored and "no more specific description of the computer equipment sought was possible").