TEAMGROUP MP44Q 4000GB

The TEAMGROUP MP44Q 4000GB utilizes the Phison PS5027-E27T controller, a four-channel DRAM-less architecture built on a 12nm process designed to maximize PCIe 4.0 bandwidth efficiency. This model uses high-density 3D QLC NAND rather than TLC, which increases storage density at the cost of native write endurance and sustained post-cache performance. To mitigate the lack of onboard DRAM, the drive employs Host Memory Buffer (HMB) technology, allowing the controller to access a portion of the system RAM for mapping tables. As a QLC drive, the MP44Q relies heavily on a dynamic pSLC cache to reach its rated speeds; once this cache is saturated during extended large-file transfers (typically exceeding 25–30% of remaining capacity), write speeds drop steeply to native QLC levels (often below 300 MB/s). The drive is widely utilized in single-sided 4TB configurations, making it common for laptop expansions where physical clearance is limited.

Key Specifications

• Interface: PCIe 4.0 x4 (NVMe 1.4)
• Controller: Phison PS5027-E27T (4-Channel, DRAM-less)
• NAND Configuration: 3D QLC (Likely Kioxia BiCS6 or Micron 176L QLC)
• Max Sequential Read: 7000 MB/s
• Max Sequential Write: 5900 MB/s
• DRAM Cache: None (Supports HMB)
• Physical Trait: Single-sided PCB design (standard for 4TB variants)

Hardware Alternatives

• Corsair MP600 ELITE 4000GB: Shares the Phison E27T controller architecture but typically pairs it with TLC NAND, offering superior endurance compared to the MP44Q's QLC.
• Sabrent Rocket 4 (E27T Refresh): Shares the Phison E27T controller architecture and is typically paired with TLC NAND rather than QLC.
• Crucial P3 Plus 4000GB: A direct QLC competitor; the MP44Q generally outperforms older alternatives due to the higher bandwidth capabilities of the newer Phison E27T controller.
• Solidigm P41 Plus: A direct QLC competitor in the same segment.
• Lexar NM790 4000GB: Functional alternative using TLC NAND, offering higher sustained write performance than the QLC-based MP44Q.