➀ The article reviews the WD Blue SN5000 1TB NVMe SSD, a mid-range drive aimed at the mainstream PCIe Gen4 market with a focus on cost-effectiveness. ➁ It highlights that the drive uses Kioxia 112-layer TLC NAND and an in-house controller without DRAM cache. ➂ The review covers the performance, endurance, and specifications of the drive, noting that it offers mid-range performance with a 5-year warranty.

➀ The WD Black SN7100 2TB NVMe SSD is reviewed, focusing on its performance and specifications. ➁ The drive is found to be a DRAM-less high-performance Gen4 SSD with speeds near interface limits for a Gen 4 SSD. ➂ The review discusses the drive's internal components, including the NAND flash and controller, and its endurance and warranty.

❶ The 4TB WD Blue SN5000, based on QLC technology, offers competitive performance with single-sided design suitable for various devices. ❷ It features BiCS6 QLC flash, promising efficiency and high data density, though it may lag slightly in write performance compared to TLC. ❸ Pricing and optimal utilization of its PCIe 4.0 interface remain concerns, but it presents a viable option for mainstream users if competitively priced.