SanDisk SSD PLUS 1000GB

The SanDisk SSD PLUS 1000GB is an entry-level SATA drive with a DRAM-less architecture that prioritizes density. It typically pairs a SanDisk proprietary (or rebadged Western Digital) controller—or in some batches a Silicon Motion SM2259XT—with SanDisk BiCS 3D NAND. The drive relies on a static pseudo-SLC caching tier to maintain rated sequential speeds and writes directly to NAND once the cache is exhausted. This SKU is noted for "silent revisions" and BOM changes; earlier revisions used TLC NAND while newer 1000GB production runs often use QLC NAND, which affects sustained write performance. The unit also uses a plastic enclosure, which reduces thermal conductivity compared to metal cases.

Key Specifications

• Interface: SATA III (6Gb/s)
• Max Sequential Speeds: 545 MB/s Read, 515 MB/s Write
• Controller: Variable (SanDisk Proprietary or Silicon Motion SM2259XT)
• NAND Type: SanDisk BiCS 3D NAND (Variable TLC or QLC)
• DRAM Status: DRAM-less
• Physical Trait: Thermally insulative plastic chassis

Hardware Alternatives

• Western Digital WD Green 1000GB: Acts as the direct internal sibling to the SSD PLUS; teardowns often show identical PCBs, controllers, and firmware configurations, differentiated mainly by branding and distribution.
• Crucial BX500 1000GB: A direct architectural competitor; a DRAM-less SATA drive that exhibits similar performance drops during large transfers but uses Micron NAND instead of SanDisk BiCS.
• Kingston A400: Sits in the same architectural tier, typically using a Phison S11 controller and exhibiting variable hardware components depending on manufacturing batch.