The NM610 comes in a small, black box. Along with a picture of the drive, the front advertises a number of its key features including its 1TB capacity, PCIe Gen3x4 interface, NVMe 1.3 support and 3D NAND. Inside, you'll find the SSD, a fold out guide containing warranty information, as well as some brief installation instructions.
The NM610 uses the 2280 form factor for M.2 (NGFF) SSDs. It measures 80 x 22 x 2.25 mm and weighs in at 9g. The drive also has an "M key" edge connector which provides PCIe SSDs with up to 4x lanes of bandwidth.
Like the NM600, the NM610 uses Silicon Motion's SM2263XT controller. Designed for cost-effective, small form factor and low power client SSDs, this DRAM-less, PCIe Gen 3 x4 controller is powered by a dual ARM Cortex CPU and offers four channels with up to four chip enables (CE) per channel. The SM2263XT also supports the latest 3D NAND from all major manufacturers and features Silicon Motion’s proprietary NANDXtend error-correcting code (ECC) technology, SRAM ECC and end-to-end data path protection.
For the 1TB version of the NM610, Lexar opted to use Intel's 64-layer TLC 3D NAND flash. Looking at the picture above, you can see that there are four 256GB NAND flash packages on the top of the PCB. Also take note that there is no DRAM cache chip. The NM610's SM2263XT controller takes full advantage of NVMe's Host Memory Buffer feature by using a small portion of the computer's memory to cache the mapping tables.