MINISFORUM S5 Packs 40 TB Into a Completely Fanless All Flash NAS
MINISFORUM is expanding its storage lineup with the S5, a compact 5 bay all flash NAS built around Intel's new Wildcat Lake platform. The system combines up to 40 TB of NVMe storage, 10 GbE networking, dual USB4 connectivity, and completely passive cooling, targeting homelabs, media servers, creators, and users who want an always on storage system without mechanical drive or fan noise.
The MINISFORUM S5 product page confirms an Intel Core 3 304 processor from the Wildcat Lake family. Intel lists the chip with 5 cores and 5 threads, consisting of 1 Performance core and 4 Low Power Efficient cores, with boost speeds reaching 4.3 GHz. Processor base power is rated at 15 W, with maximum turbo power reaching 35 W, making it well suited to a system designed around passive cooling.
The same Core 3 304 has already appeared inside the MINISFORUM M2 Air 304, showing Wildcat Lake moving beyond notebooks and into compact desktops and storage focused systems. The S5 uses the processor differently, prioritizing low power operation, networking, storage, and continuous workloads rather than raw desktop performance.
Storage is the main attraction. MINISFORUM equips the S5 with 5 M.2 2280 NVMe slots, each connected through PCIe 4.0 x1. With 8 TB drives installed in every slot, total capacity reaches 40 TB. While PCIe 4.0 x1 limits each SSD compared with a conventional x4 NVMe connection, the available bandwidth remains appropriate for a NAS built primarily around 10 GbE networking, where the network itself becomes an important practical limit during remote transfers.
Connectivity includes 1 10 GbE port, 1 2.5 GbE port, 2 USB4 ports capable of up to 40 Gbps, USB Type A connectivity, HDMI 2.1, and Wi Fi 7 support. MINISFORUM also lists LPDDR5X memory operating at up to 7500 MT/s, although the current storefront does not clearly specify the final installed memory capacity.
The aluminum chassis measures approximately 176.5 x 60 x 154 mm and acts as part of the cooling solution. There are no mechanical hard drives and no system fans, allowing the S5 to operate without the usual acoustic footprint associated with conventional NAS hardware. MINISFORUM is positioning it for 4K and 8K creative projects, RAW photo libraries, home theater storage, lossless music, Docker services, databases, and lightweight homelab workloads.
MINISFORUM is also integrating the S5 into its broader local AI strategy through MinisCloud OS and MinisOpenClaw. The software platform includes functions such as semantic photo searching and locally managed services, although the Core 3 304 clearly positions the S5 as a lightweight AI and storage system rather than a heavy local inference machine.
Pricing has not yet been announced. The current product page is accepting registrations for early access, with availability expected around October 2026.
The Core 3 304 is modest hardware, but that makes sense for what MINISFORUM is building. A NAS does not necessarily need a large mobile processor consuming significantly more power when the priority is file serving, media libraries, containers, backups, and 10 GbE networking.
The more interesting compromise is PCIe 4.0 x1 across the 5 SSD slots. Buyers expecting workstation class NVMe performance will not get the full capability of modern x4 drives, but for network attached storage the design is much easier to justify. Lower SSD bandwidth also means lower heat, which matters considerably when the entire enclosure depends on passive cooling.
The S5 could therefore be particularly attractive as a quiet home server or creator storage box. The deciding factor will be price, especially when filling 5 slots with high capacity NVMe SSDs can quickly cost more than the NAS itself.
Would you trade the capacity value of traditional hard drives for a completely silent 40 TB all flash NAS?
