Usage Tips:Ultra-slim design,15mm thickness, takes up less space than the conventional 25mm thickness, reduces interference with the motherboard and graphics card, and is suitable for various small-sized chassis Small stature, big energy,4Pin intelligent temperature control fan, supports PWM temperature control and speed regulation to balance performance and noise PWM temperature control dual noise reduction fan,Adopting 7-blade design and golden tangent theory, double-sided silicone shock-absorbing pads, reducing chassis resonance, easily achieving low noise and striving for high-efficiency output Hydraulic bearings PLUS extend service life,Adopt HB hydraulic bearing, stable speed, less wear, lower noise, durable and quiet Double-sided shock-absorbing rubber pad,Shock-absorbing rubber pads are installed on both sides of the four corners to effectively absorb vibrations at high speeds, reduce resonance noise, and make operation more stable Fan size:92x92x15mm Product model:UT-9015 Rated speed:1000-270010 percent RPM noise:31.5dB(A) (MAX) Air volume range:41.9CFM (MAX) wind Pressure:1.97mmH2O (MAX) Current:0.16A0.03A Bearing type:Hydraulic bearing Colour:As Shown Material:plastic Due to different batches, there may be differences in product appearance and printed text, which will not affect use Package Contents: 2 x Computer Case Fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.