For the CORSAIR coolers named in its Threadripper compatibility guide, the buying decision comes down to the exact cooler model, not simply whether its box says “AMD.” The H150i and H170i ELITE CAPELLIX XT, H150i and H170i ELITE LCD XT, and H150i RGB ELITE are listed with included AMD sTR5 mounting hardware. The NAUTILUS 360 RS ARGB instead requires the separate NAUTILUS RS AIO AMD TR5/SP6 Retention Kit, SKU CW-8960138. If you already own a cooler, check which model and mounting parts you actually have before buying either a new AIO or a duplicate kit.
Match the Socket and the Complete Model Name
Start with the CPU and motherboard socket, then read the cooler’s full name from its label, order record or documentation. CORSAIR says Threadripper 9000 Series retains the sTR5 socket used by its predecessor, so that series change alone does not call for new mounting hardware on an otherwise compatible setup. That does not mean an arbitrary AMD bracket—or every CORSAIR cooler with “H150i” in its name—is covered by the compatibility list.
The distinction is easy to miss when shopping from a short product title. CORSAIR’s included-hardware statement names these variants:
| Cooler named in CORSAIR’s guide | sTR5 mounting decision |
|---|---|
| H150i ELITE CAPELLIX XT or H170i ELITE CAPELLIX XT | AMD sTR5 mounting hardware included |
| H150i ELITE LCD XT or H170i ELITE LCD XT | AMD sTR5 mounting hardware included |
| H150i RGB ELITE | AMD sTR5 mounting hardware included |
| NAUTILUS 360 RS ARGB | Buy the separate NAUTILUS RS AIO AMD TR5/SP6 Retention Kit (CW-8960138) |
These are model-specific statements, not a rule for similarly named LCD, TITAN, NAUTILUS or other variants absent from the list. If your exact cooler is not named, do not treat a shared brand, radiator size or partial model name as confirmation of sTR5 mounting support. Check its own documentation before committing to the build.
Separate the Mounting Decision from the Radiator Decision
A compatible retention arrangement answers how the cooler attaches. It does not, by itself, answer whether the radiator is the choice you want for a Threadripper build. CORSAIR notes that 240 mm and 280 mm sizes in the lineups it discusses also include the appropriate mounting hardware, but advises against going below a 360 mm AIO for Threadripper cooling. For buyers particularly concerned about noise, it recommends a 420 mm radiator and explicitly cautions that the case must accommodate it. These are manufacturer recommendations, not a promised temperature, noise level or result for every workload.
That distinction matters when retaining parts. Finding a suitable bracket for a smaller cooler does not turn CORSAIR’s mounting-hardware statement into a recommendation to use that radiator. Conversely, choosing a 360 mm radiator does not make the NAUTILUS 360 RS ARGB’s separate kit optional. Check both questions independently: Is the exact cooler documented for this socket with the hardware I will have? and Will its radiator fit my case and meet the manufacturer’s size advice for this CPU?
For a proposed 420 mm setup, check more than the number in the case’s advertised radiator support. Confirm the intended mounting position, available clearance with nearby components and the complete cooler configuration before ordering. A case that can take one radiator format in one position may still complicate your preferred layout.
If You Already Own the AIO, Inventory It First
“Hardware included” describes the named cooler offering; it cannot tell you what remains with a used, stored or transferred unit. Lay out the existing cooler’s retained mounting components and fasteners, identify its exact model, and compare what you have with that model’s installation documentation. If parts are missing, identify the correct replacement for that cooler rather than buying a complete new AIO solely because the bracket bag is gone.
The separate CW-8960138 kit has a narrower purpose in the supplied compatibility information: it is the specified TR5/SP6 retention kit for the NAUTILUS 360 RS ARGB. It is not presented as a universal fix for the included-hardware ELITE models or for an unidentified cooler. Do not assemble a mount from miscellaneous pieces that happen to fit together; obtain the documented parts for the exact cooler and follow its installation instructions.
If you are comparing a retained ELITE cooler with a new NAUTILUS 360 RS ARGB, account for what each route actually requires. The named ELITE model may already give you the mounting route if its correct hardware is still present. The NAUTILUS route is a cooler plus its specified separate kit. That makes the kit a purchase dependency, not an interchangeable alternative to the entire cooler.
Buying the Separate Kit
CORSAIR’s older compatibility guide marks CW-8960138 “Coming Soon.” Its saved US store page dated October 26, 2026, instead lists the NAUTILUS RS AIO AMD TR5/SP6 Retention Kit under SKU CW-8960138 and showed it in stock at that time. Use the CORSAIR CW-8960138 product page to check the listing and availability when you buy; the saved stock state is not a promise about a later order. Neither the listing nor the compatibility guide establishes an individual-fastener inventory to substitute for the kit’s installation documentation.
For example, suppose you have an sTR5 Threadripper system, own a NAUTILUS 360 RS ARGB without its Threadripper mounting parts, and plan to use it in a case with a suitable 360 mm radiator location. Your order plan is not just “a Threadripper-compatible 360 mm AIO”: it is to keep the identified NAUTILUS cooler and obtain CW-8960138. Before installation, check the case’s radiator space, the motherboard and cooler documentation for the required pump and fan connections, and the documentation for the complete mounting arrangement. If the case cannot accommodate the planned radiator and connections, resolve that fit problem before purchasing the kit.
A buyer choosing an H170i ELITE LCD XT instead should make a different check: confirm the complete variant name, allow for its radiator in the case, and verify that the unit being purchased or reused actually has its specified sTR5 hardware. Adding the NAUTILUS retention kit would not address a missing part for that different model.
The shortest reliable checkout checklist is therefore: exact sTR5 cooler model, correct model-specific mounting parts, suitable radiator space, and the required connections. Choose a named included-hardware model with its hardware present, or pair the NAUTILUS 360 RS ARGB with CW-8960138. Keep radiator suitability as a separate decision rather than assuming that a successful mount guarantees the cooling result you need.
