TEAMGROUP MP44S 1000GB

The TEAMGROUP MP44S 1000GB utilizes a DRAM-less architecture built around the Phison PS5021-E21T controller, a 4-channel logic unit manufactured on a 12nm process. To achieve high storage density within the restrictive M.2 2230 form factor, the drive pairs this controller with Micron 176-layer 3D QLC NAND (N48R). While the interface supports PCIe 4.0 x4 speeds, the reliance on QLC media and the lack of dedicated DRAM mean the drive depends heavily on Host Memory Buffer (HMB) technology and a pseudo-SLC cache for burst performance, making it distinct from the TLC-based standard MP44 model. The single-sided 2230 dimensions make it a common choice for handheld gaming PCs (Steam Deck, ASUS ROG Ally) and some Microsoft Surface devices. The graphene-composite label aids heat dissipation, but the drive's thermal density is high; sustained writes can saturate the SLC cache quickly, causing write speeds to drop to native QLC levels (typically below 400 MB/s). Users should verify M.2 slot height in ultra-thin laptops, as component density on the top side is substantial.

Key Specifications

• Interface: PCIe 4.0 x4 (NVMe 1.4)
• Form Factor: M.2 2230 (Single-sided PCB)
• Controller: Phison PS5021-E21T
• NAND Type: Micron 176-Layer 3D QLC
• Max Sequential Read: 5000 MB/s
• Max Sequential Write: 3500 MB/s
• DRAM Cache: None (HMB Support)
• Endurance: 250 TBW
• Thermal Solution: Graphene-coated heat spreader label

Hardware Alternatives

• Addlink S91: Closest hardware relative, sharing the same Phison E21T controller and QLC NAND configuration, resulting in a nearly identical performance profile.
• Micron 2400 1000GB: A direct competitor often found as an OEM stock drive; uses 176-layer QLC NAND paired with a Silicon Motion controller (SM2269XT), generally offering lower peak bandwidth than the MP44S.
• Sabrent Rocket 1000GB / Western Digital WD_BLACK SN770 1000GB: TLC-based options in the same form factor that offer superior sustained write performance and higher endurance ratings compared to the QLC-based MP44S.