With the maturation of on-device AI computing, multimodal perception fusion, and reinforcement learning frameworks, robots are evolving from being merely reactive to becoming truly adaptive, with requirements of accumulating experience to achieve autonomous evolution, far beyond just executing commands.

• AI models are growing larger.What to do when data loading is too slow and affects decision-making?
• Devices are becoming increasingly compact, with every bit of internal space at a premium. How to balance tiny size with high-performance transmission?
• Training data keeps piling up, but memorycapacity isn’t enough and can’t be upgraded?

Conventional embedded storage solutions (such as UFS, eMMC, M.2 SSD, MicroSD cards) are limited by trade-offs among performance, form factor, and scalability, making them insufficient for the evolving demands of humanoid robotics handling sustained high-load operation, long lifecycle, high system integration, and incremental learning.

BIWIN BGA SSD, with its superior performance, compact form factor and excellent shock-resistance, has become one of the preferred solutions for robots; Mini SSD, positioned as an expandable storage choice with superb upgradability and flexibility, strikes a perfect balance between high performance and compact package. The combination of the built-in BGA SSD plus expandable Mini SSD constructs a new integrated storage architecture, working as a complete solution to provide stability, expandability, and systemic efficiency for intelligent robots.

Built-in BGA SSD + External Mini SSD

Supporting high-frequency data writes for advanced perception and decision-making

The “brain” of a humanoid robot—the core computing motherboard—is the hardware hub for advanced perception, cognitive reasoning, and autonomous decision-making. Relying on high-performance AI computing chips, it runs multimodal large models and processes massive sensor data in real time to understand environments and plan tasks. This process demands fast and reliable storage for the operating system.

BIWIN BGA SSD uses a PCIe 4.0 ×4 interface, delivering sequential read speeds up to 7350 MB/s and capacities up to 2TB, enabling “second-level” boot times for the OS and AI models.

Robots operate under write-intensive workloads that far exceed typical consumer SSD applications. In some high-load systems, daily write volumes can reach 300 GB. Once the initial onboard storage (such as UFS or fixed SSD) becomes saturated, there’s no room left for ongoing data feeding and model iteration.

Designed for effortless scalability, BIWIN Mini SSD features a SIM-card-style, slot-in design that enables a true “plug-and-play” experience. No disassembly or specialized tools are required to add up to 2 TB of high-speed storage (with higher capacities planned), ensuring long-term data accumulation, incremental learning, and intelligent evolution for robotic systems.

While achieving extreme miniaturization and large capacity, BIWIN Mini SSD also delivers high-performance transfer rates. Equipped with a PCIe 4.0 ×2 interface, its read/write speeds reach up to 3700 MB/s and 3400 MB/s respectively, and future seamless upgrades to higher-performance versions (such as PCIe 5.0) are supported.

SIM-card-sized, as light as 1g

Saving device space and reducing weight

As humanoid robots move toward practical deployment, lightweight design is not just about “shedding weight”; it’s more about simplifying mechanical structures, lowering manufacturing costs, improving mobility, and expanding application scenarios. As an essential hardware component, the size and weight of memory module directly impact overall device design.

Both the BIWIN BGA SSD and Mini SSD feature a coin-sized footprint with an ultra-slim thickness of just 1.4 mm. The Mini SSD weighs as little as 1 g and can be directly inserted into a pre-designed socket, significantly reducing constraints on mechanical layout and overall system weight. For humanoid robots that demand high dynamic performance and extended battery life, BIWIN BGA SSD and Mini SSD deliver a “minimal physical presence” while enabling a “lightweight system design”—resulting in more compact architectures and greater motion agility.

Dual Storage, Reshaping Industry Cooperation

Safeguarding the Full Lifecycle Storage Needs of Robots

Mini SSD, defined as an expandable memory solution, goes far beyond its storage function; its design concepts of modularization and standardization bring a brand-new product architecture mindset to intelligent terminal industries such as robots and notebooks.

Manufacturer Enablement: Simplified Design, Faster Iteration

• BIWIN delivers a Mini SSD + socket solution based on a modular integration approach, enabling device manufacturers to optimize internal system layouts, reduce form-factor constraints, and develop thinner, lighter end products with clear differentiated competitiveness.
  
  
• The host-side socket offers strong compatibility across multiple capacity SKUs, requiring minimal hardware changes. This significantly lowers development effort, integration complexity, and overall system cost for device manufacturers.

User Value: Plug-and-Play, Maximum Flexibility

• Storage expansion or replacement can be completed on-site without tools or specialized expertise. Designed for repeated, reliable insertion and removal, the solution allows end users to easily expand or swap TB-class storage, delivering a flexible and efficient storage experience.
  
  
• When paired with BIWIN’s in-house RD510 card reader (USB4.0 Type-C), users gain high-performance, portable storage for mobile productivity, content creation, and other data-intensive scenarios.
  
  

Mini SSD has already entered mass production and is now integrated into multiple intelligent devices, including the OneXPlayer X1 Air, APEX, Super X, and GPD Win 5. It is also officially available for purchase in the consumer market.

Since its debut, Mini SSD has been validated by several international honors, consisting of “Best Inventions of 2025” from TIME, “Best-in-Show” from Embedded World 2025, and “2026 CES Picks Awards” in the TWICE category. And BIWIN is also recognized as a winner of 2025 “China Chip” Outstanding Supporting Service Enterprise by right of this new innovation.

Currently, BIWIN is collaborating with multiple SoC platforms and terminal brands to jointly promote Mini SSD interface specifications and ecosystem standards, accelerating its large-scale adoption in cutting-edge fields such as AI terminals and humanoid robots.