At the 2019 Flash Memory Summit, Realtek announced a slew of new Flash memory controllers targeting a diversity of devices, spanning from USB flash drives to USB external SSDs, M.2/U.2 NVMe internal SSDs. Leading the pack is the RTS5771, the company's new flagship NVMe SSD controller that features a PCI-Express 4.0 x4 host interface, 8 NAND Flash channels with up to 1,200 MT/s speeds per channel, NVMe 1.3, and DRAM cache. This becomes the third PCIe gen 4.0-capable client-segment NVMe SSD controller after the Phison E16 and the Marvell 88SS132x.

The RTS5765DL is its cost-effective sibling, which has PCI-Express 3.0 x4 host interface, just 4 NAND Flash channels, and is DRAM-less, allowing manufacturers to design cost-effective SSDs. It still has 1,200 MT/s bandwidth per channel, so drives that implement it can offer sequential speeds similar to premium drives from the previous generation. The new RTL9210 is a bridge chip that converts USB 3.1 gen 2 (10 Gbps) to PCI-Express 3.0 x2, ideal for cost-effective external NVMe SSDs. The controller also features an integrated RGB LED logic, so drive designers can bling up their creations.