The NH-L9a-AM4 chromax.black is a quiet premium cooler for AMD AM4 based HTPCs and small form factor systems. With a super flat height of only 37mm, the NH-L9a-AM4 chromax.black is ideal for particularly compact housings and thanks to its compact footprint, the cooler offers full compatibility with memory modules and VGA cards on mini-ITX mainboards.The features of the Noctua NH-L9a-AM4 chromax.black at a glance:- Special edition of the NH-L9a-AM4 from Noctua- Black coated heat sink and matching accessories- Extremely flat design- Two copper heat pipes- Including 92 mm fan NF-A9x14 HS-PWM- 57.5 m / h (33.84 cfm) delivery volume at 23.6 dB (A)- Colour-adjustable with optional accessoriesThe features of the Noctua NH-L9a-AM4 chromax.black in detailThanks to the extremely low heat sink (23 mm) and the 14 mm slim fan, the overall height of the NH-L9a-AM4 chromax.black is only 37 mm. This makes the cooler ideal for compact HTPCs and small form factor housings that offer very little space for CPU coolers. The NH-L9a-AM4 chromax.black has a compact footprint that fits exactly into the keep-out zone of the AM4 base. So there are no problems with other parts or components.The highly optimized NF-A9x14 HS-PWM premium fan supports PWM for fully automatic speed control and uses innovative aerodynamic design measures and Noctua\'s AAO frame system. With only 23.6 dB (A) volumeat a speed of up to 2,500 rpm and a decent 57.5 m / h (33.84 cfm) airflow , the fan shows impressive values despite its small size of only 92 by 92 by 14 millimeters. With the Low-Noise Adapter (LNA) the speed of the NF-A9x14 HS-PWM fan can be reduced to 1,800 rpm. If you need larger power reserves, you can replace the pre-installed fan with a 92 model with a height of 25 millimeters.Chic stealth design with optionsThe special edition of the NH-L9a-AM4 , the chromax.black edition , is completely black . This means that not only the radiator was coated with black fins. The color of the fan, the associated anti-vibration pads, the fan clips and the mounting material have also been adjusted.A special highlight is the NH-L9A-AM4 chromax.black by variable colors accessories . With optional cooler covers and anti-vibration pads, many color combinations can be realized and popular color schemes such as black / white or black / red and many more can be achieved.The all-round high-quality package is completed by the proven SecuFirm2 mounting system, Noctua\'s renowned NT-H1 thermal paste and a 6-year manufacturer\'s guarantee. Its excellent cooling performance, smooth running and excellent compatibility make the NH-L9a-AM4 chromax.black a premium solution for the highest demands.Technical details:- Dimensions: 95 x 37 x 95 mm (W x H x D)- Material: copper (radiator bottom, heat pipes), aluminum (fins)- Weight: approx. 380 g- Heat pipes: 2Fan: - Dimensions: 92 x 92 x 14 mm (L x W x H)- Connection: 4-pin PWM- Standard: 23.6 dB (A), 2,500 rpm, 57.5 m / h (33.84 cfm)- LNA: 14.8, dB (A), 1,800 rpm, 40.8 m / h (24.01 cfm)- Power consumption: 2.52 W- Operating voltage: 12 V- MTBF:> 150,000 h- Compatibility: AMD AM4- Manufacturer guarantee: 6 years