Genuine Seagate 320GB 2.5-Inch Solid State Hybrid Caching Storage Drive

Model: ST93205620AS | Series: Momentus XT Hybrid | Profile: 9.5mm Standard

The Seagate Momentus XT 320GB (ST93205620AS) is a unique, high-performance 2.5-inch Solid State Hybrid Drive (SSHD) designed to blend the high capacity of a mechanical drive with the rapid responsiveness of flash memory. It features a fast 7200 RPM spindle speed paired with a 32MB data cache, but its real performance engine is an integrated 4GB SLC NAND flash memory tier utilizing Seagate’s proprietary Adaptive Memory™ technology. This hybrid architecture automatically learns your most frequently used files—such as operating system boot files and core applications—and mirrors them onto the ultra-fast flash layer, delivering vastly accelerated startup cycles and snappier performance without sacrificing local storage space.

• Capacity: 💾 320 GB

• Spindle Speed: 🏎️ 7200 RPM (High-speed mechanical platter rotation)

• Hybrid Flash Layer: 🧠 4 GB SLC NAND Solid-State Flash Cache

• Interface: ⚡ SATA II 3.0 Gbps (Backward compatible with SATA I and forward compatible with SATA III)

• Form Factor: 📏 2.5-Inch (9.5mm standard thickness profile)

• Onboard Cache: ⚡ 32 MB Hardware Buffer

• Caching Technology: 🧠 Seagate Adaptive Memory™ (Self-learning firmware architecture)

• Acoustics & Power: 🤫 Quiet-seek acoustics with optimized power-saving idling profiles

• Seagate Adaptive Memory™ Engine: Features self-learning algorithm firmware that dynamically tracks data usage. It automatically pinpoints your operating system's boot sequences and most frequently launched apps, copying them to the 4GB SLC NAND cache for near-instant execution.

• High-Speed 7200 RPM Performance Base: Unlike standard 5400 RPM laptop hard drives, the physical platters spin at a rapid 7200 RPM. This drastically cuts down mechanical latency, boosting random read and write access speeds across the entire 320GB layout.

• Standard 9.5mm Structural Profile: Built to the traditional 9.5mm physical thickness standard. This makes it an ideal, direct drop-in replacement part for older notebooks, legacy laptops, rugged industrial PCs, and external drive bays that require a standard Z-height clearance to seat securely.

• Target Systems:

  • Legacy Laptop Upgrades: A highly effective upgrade solution for legacy laptops from Dell, HP, Lenovo, ASUS, and Toshiba that natively support 9.5mm thick 2.5" drive bays.

  • Gaming Consoles: Directly compatible as a responsive internal storage replacement or upgrade for the Sony PlayStation 3 (PS3) and PlayStation 4 (PS4 / PS4 Slim), visibly accelerating game load times compared to standard stock hard drives.

  • Retro PC Builds & Enclosures: Highly sought after for retro workstation designs or custom external backup configurations where users desire enhanced snappiness over traditional non-hybrid drives.

• Ideal Workloads:

  • Daily Multi-Tasking: Great for everyday productivity, handling office application suites, and accelerating frequently used application suites.