|Item Model Number||NA-SYC1|
|Product Dimensions||11.5 x 1 x 0.5 cm; 60 Grams|
|Item Dimensions L x W x H||11.5 x 1 x 0.5 centimetres|
|Item Weight||60 g|
|Is Discontinued By Manufacturer||No|
|Date First Available||15 November 2017|
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Noctua NA-SYC1, 4 Pin Y-Cables for PC Fans (Black)
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|Item dimensions L x W x H||11.5 x 1 x 0.5 centimetres|
|Power connector type||4-Pin|
About this item
- Y-type splitter cables for running two fans on one fan header
- Two 4-pin PWM fans can be controlled simultaneously via one PWM fan header; RPM speed signal of one fan is transmitted to the motherboard for monitoring
- 4-pin connector supports both 3-pin and 4-pin fans
- Black connectors and black cable sleeving for clean optics
- Set includes 2 cables; Trusted Noctua quality backed up with 6-year manufacturer’s warranty
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The NA-SYC1 is a fan accessory set consisting of two fully sleeved NA-YC1 Y-Cables for 4-pin PWM fans. The NA-YC1 Y-Cables make it possible to run two 4-pin PWM fans on a single fan header and to let the mainboard control the speed of both fans simultaneously. Multiple NA-YC1 can be daisy-chained to control more than two PWM fans via one header. Caution: Common mainboard fan headers support up to 9.6 or 12W (check your mainboard manual for detailed information). Please thus make sure that the combined power draw of the fans connected to one fan header using NA-YC1 adaptors does not exceed this value!
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The reason one side only has 3 pins is because you are controlling both fan speeds from one motherboard header and you cannot change them asymmetrically; they can only run at the same speed because they're being controlled from a single header. The pin that is missing from one side of the split is the one that carries the tachometric signal to report back from the fan to the fan controller/motherboard what speed the fan is currently running at... because you already know it's running at the same speed as the other fan, because they're controlled by the same PWM pin on the header, and that other fan will be reporting that speed from its tach pin.
Anyway, these are pretty much perfect unless you hate the wee Noctua sticker tag that's on them or something. It's a simple cable that does what it should, there's not much to complain about here.
These are really good quality cables - the majority of the cable is braided, running to rubber sheaths that protect the cable near the plug socket.
Yes, one of the plugs only has 3 pins, but this is because you cannot have both fans recording their RPM values in the bios when connected to the same header, only one fan can do this. Therefore, if you need to record the RPM of a certain fan, make sure you plug it into the plug with 4 pins. The 3 pin socket only drops the signal required for the motherboard to record the RPM of the fan, nothing else - both plugs are PWM and it is not 'false advertising' as one review suggested.
The only thing i was slightly concerned about was their size - they are pretty small, however this wasn't a problem for me personally. I guess Noctua decided to go small as they already sell fan extension cables, so you could purchase one of those if you need to. In my case, the small size was perfect and made it super easy to cable manage.
Overall, another high class Noctua product with great build quality.
Reviewed in the United Kingdom on 28 March 2021
As a plus if your fans have short cables it helps by adding some extra length.
Rember to check fan power use and mobo specks so you don't overload a header.
Off topic but seems that 2 fans in front one in back is optional, 2 extra in top and no real masive gains in temperature but hay used all my fans so I'm happy and can sleep them in BIOS
One of the pins on one of splitters is missing which essentially means it wont be reporting the speed, but not to worry because as expect you will only get one reading per header, from the master fan. As a result with these types of cables, its ideal to try and keep the same type of fans together as they will have a similar speed profile and can be managed together