405140-B21 HP 256MB Battery Backed Write Cache for Smart Array P400 Controller

Enhance your HP Smart Array P400 controller’s performance and data integrity with the 405140‑B21 256‑MB battery‑backed write cache. This high‑capacity cache module stores write commands locally, ensuring rapid response times while safeguarding against power loss. Designed for enterprise‑grade servers, it delivers consistent, low‑latency access to critical data, reducing bottlenecks and boosting overall system throughput. The built‑in battery guarantees that all pending writes are preserved during outages, preventing corruption and minimizing recovery time. Ideal for mission‑critical workloads, this cache module seamlessly integrates into existing HP environments, providing a reliable, high‑performance solution for demanding storage applications.