Related Clues:

• Many a PC cable
• Port initials
• Solid, unlike a piece of cake
• Move really fast
• Like a tough nut to crack
• Thumb drive port
• Thumb drive interface
• Not a thing to move quickly
• Nothing close up to tear
• Read quickly, with ''through''
• Very challenging
• Tough to learn
• Player's challenge? I sympathise
• Laptop connection option
• Tiring party, breaking rocks perhaps