You are buying 10 pieces (10pcs) - TEN transistors.
BC109C NPN silicon planar transistor, low power, low noise, pack of 5, free P&P
BC109 NPN silicon planar transistor, low power, low noise, pack of 5, free P&P
BC109B NPN silicon planar transistor, low power, low noise, pack of 5, free p&p
BC108C NPN silicon planar transistor, low power, low noise, pack of 5, free p&p
Penn Elcom 19″ 1U COOLRAC Hot Air Low Noise Extraction Unit
Penn Elcom 3U Low Noise Dual Rack Fan Panel FP02-Q-3U Quiet Cooling System