WINSINN Round DC Cooling Fan
We have two sizes, they are 2510 (25.5×25.5x7mm) / 3010 (31.5×31.5x10mm), and they have 5V / 9V / 12V and 24V.
There are two bearing options, Hydraulic Bearings and Dual Ball Bearings.
Hydraulic bearings, which keep the oil of bearings, better than sleeve bearings, life: 35,000 Hours.
Dual Ball Bearings, which high quality NMB, low noise and can work continuously 24 hours / day, long life: 50,000 Hours.
USB – 39.37in(1000mm) – 2510 / 3010 – Fan – 5V – Hydraulic bearings / Dual Ball bearings
XH2.54 – 11.8in(300mm) / 39.37in(1000mm) – 2510 / 3010 – Fan – 5V / 9V / 12V / 24V – Hydraulic / Dual Ball bearings
Order quantity must more than 50Pcs.