Quick Summary
The Noctua NH-L9i-17xx chromax.black is a premium low-profile CPU cooler for Intel LGA1700 and LGA1851. It is 37mm high and comes in an all-black design. The cooler includes an NF-A9x14 slim 92mm fan, low-noise adaptor, PWM for automatic speed control, NT-H1 thermal paste and the SecuFirm2 mounting system.
The compact footprint is stated to suit compact HTPC and Small Form Factor cases, with 100% RAM and PCIe compatibility on ITX, Micro-ATX and ATX motherboards using the stated Intel sockets.
Who It Is Best For
This cooler is aimed at buyers who need a low-profile solution for Intel LGA1700 or LGA1851 systems. It is especially relevant where case height is limited and where the footprint needs to avoid conflict with RAM and PCIe areas.
It also suits anyone who wants the black chromax.black finish rather than a standard lighter-coloured cooler.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Noctua. |
| Model | NH-L9i-17xx chromax.black. |
| Product type | Low-profile CPU cooler for Intel systems. |
| Supported sockets | Intel LGA1700 and LGA1851. |
| Height | 37mm high, which matters for compact cases with limited cooler clearance. |
| Fan | NF-A9x14 slim 92mm fan with PWM and a low-noise adaptor. |
| Included thermal paste | NT-H1 thermal paste is included. |
| Mounting system | SecuFirm2 mounting system is included for installation on the stated Intel CPUs. |
| Finish | All-black design. |
| Compatibility note | Stated to provide 100% RAM and PCIe compatibility on ITX, Micro-ATX and ATX motherboards using the stated sockets. |
How It Works
The cooler uses a slim 92mm fan and PWM control for automatic speed adjustment. The low-noise adaptor is included for users who want to reduce fan speed further under suitable conditions. SecuFirm2 mounting is included to secure the cooler to Intel LGA1700 and LGA1851 CPUs.
What To Know Before You Buy
Check that your motherboard uses Intel LGA1700 or LGA1851 before ordering. Confirm that a 37mm cooler height suits your case clearance, especially in compact HTPC and Small Form Factor builds. If you are choosing around nearby components, the stated footprint is designed for full RAM and PCIe compatibility on the supported board formats.
The cooler is presented as a deluxe choice for Intel Ultra with moderate heat load, including 245K, 14600 and 13600. Review your CPU choice and intended cooling requirement alongside the supported socket fit.
Common Buyer Questions
Which Intel sockets does this cooler fit?
It is for Intel LGA1700 and LGA1851.
How tall is the cooler?
It is 37mm high, which is useful when case clearance is limited.
What is included in the box?
NF-A9x14 slim 92mm fan, low-noise adaptor, NT-H1 thermal paste and SecuFirm2 mounting system are all included.
Is it suited to compact builds?
Yes, it is stated to fit compact HTPC and Small Form Factor cases.
Final Buying View
If you need a low-profile Intel CPU cooler for LGA1700 or LGA1851, this model combines a 37mm height with the stated mounting and compatibility features. Confirm socket type, case clearance and your board layout before choosing.





