@biggen said in Add 2.5" U.2 (NVMe) SSDs to custom build?:
@Pete-S said in Add 2.5" U.2 (NVMe) SSDs to custom build?:
Intel P4510
Yup that would work. Wish I could figure out a way to at least mount the U.2 drives in the 3.5" external drive bay since I don't need a 3.5" bay for anything else. ICY DOCK makes a twin 2.5" SATA drive bay that fits in a 3.5" bay, but they don't make a twin 2.5" U.2 NVMe drive bay that fits in the 3.5". I'm guessing the 2.5" U.2 needs either more spacing or better cooling than a standard 2.5" SATA SSD.
You don't want them in an external bay. Remember that these are PCIe bus connections so it makes sense to have short cables. The cables in the adapter above are probably 1.5 feet at the most.
U.2 drives are thicker than standard SSDs, usually 15mm (a little more than 1/2 inch). They get hotter than normal SSDs but nothing extreme. P4510 for instance is rated at 16W power consumption. Which is about twice as much as a 3.5" spinner. In a high powered rack server the drives stays cool but they're usually designed to have a generous amount of airflow through the case and over the drives.
PS. If it wasn't clear - U.2 drives have the same mechanical mount as 2.5" drives. So you can mount them in a 2.5" internal drive bay or in a 3.5" internal drive bay with adapters. You just can't put them in a hotswap drive bay or any drive bay that has an SATA or SAS backplane because it's electrically not the same.