In-line Digital Thermal Sensor Cable for upgrading the Hard Drive in 27-inch & 21.5-inch iMac (Late 2009 - Mid 2010) models

This was used specifically to allow the successful replacement of a conventional HDD with a SSD in a late 2009 iMac computer. One end attaches to the standard SATA data connection on the drive and the other to it's complementary socket on the connector from the motherboard. Emerging from between them is a thermal sensor, which you stick to the SSD and the fine pair of wires that are then plugged into the appropriate small socket (labelled HDD TMP on my Mac) near the mounting bay. These should carry thermal information to the OS so that the fan can be kicked into action if the drive becomes warm. Not that an SSD runs hot enough (usually) to need much cooling, but you certainly don't want the "emergency default" of a full-speed fan running madly inside your computer. This is what happens if the OS isn't getting any thermal information, which is why you need this little piece of genius. Worked a treat. Not merely recommended but essential.

I have bought nearly 10 of these as I repair 2009-2010 27" imacs and replace their internal hard drives to SSDs. However one think I found out is that you do not really need these as most recent SSDs have thermal sensors built inside them and the mac sees them. The only problem is that the software does not associate the internal hard drive thermal sensor with fan control so HDD fan runs at almost full speed despite being able to monitor HD temperature! If you do not upgrade for a customer and keep the imac for yourself, you can save some money by just connect the SSD as normal with standard SATA cable, then download Macs Fan Control for free and set the HDD fan to "sensor-based value, then choose from the list your SSD hard drive. That will work!!

Works as intended on my iMac after hdd upgrade to ssd to keep fans running at normal speed without having to resort to a software hack

Used this so that I could upgrade the HDD in my 2009 27" iMac to a SSD. It did take me a couple of hours to change the disk but my iMac is now running very much faster and I am very pleased. This part does seem expensive but I have not had any problems since swapping the disks so assume that it is working well.

Ok

Required when upgrading from a spinning HDD to an SSD for interconnection and thermal sensing. Good quality and easy to install.

I tried to get away with not buying one of these. I upgraded the internal HDD if my iMac to an SSD. When I rebooted the fan came on at full speed, really noisy. I've never heard my iMac make so much noise. I order this cable, opened up the iMac one more time and installed it. Brilliant. iMac now back to same quiet volume and the SSD works like a charm. Do not try to skip buying this cable.

This is a cable which works (arrived in 2 days from orddering) and resolves the firmware fan issue when replacing a 3.5 HDD to 2.5 SDD on a mid-2010 imac. All completed in 30 minutes while watching the installation OWC video, I feel this is a far better solution than installing software to modulate the fan. I have given this 5 stars as although it is expensive it’s better when combined with the SSD install and caddy (1tb SSD) it’s less than a third of the price of Apple were completing the install...all in all I highly recommend.

Veramente fantastico!!!!!!!

Einbau ging nach dem Installationsvideo einfach. Das Teilfunktioniert. Neustart und RUUUUHE. Kein Lüfter mehr der nervt. So muss das sein. Kann das Teil nur weiterempfehlen.

Ce câble m'a permis d'installer très aisément un disque dur SATA en lieu et place de l'ancien disque d'un iMac 27" mid 2010 (Prévoir l'achat d'un adaptateur 2,5 pouces sur emplacement 3,5 pouces). Maintenant sous Linux Mint, ce vieil iMac a retrouvé une nouvelle vie.

Vervangen , werkt prima nu de Macbook

Works well - OK product - good value