Serial Cables launches M.2 to E3 adapters for cheaper E3 validation

Serial Cables says its new Gen5 M.2 to E3 EDSFF adapters let engineering teams validate E3.S platforms using lower-cost M.2 NVMe SSDs instead of buying dedicated enterprise drives. The adapters are available now, with a Gen6 version due in Q4 2026.

Why it matters: - Storage and platform engineering teams can cut validation costs by reusing M.2 NVMe SSDs they already own instead of stocking E3.S drives. - Serial Cables says M.2 SSDs cost roughly 70% to 80% less per unit of capacity than enterprise E3.S SSDs. - The adapters target qualification, validation, interoperability, and bring-up testing in E3 EDSFF environments. - More information

What happened: - Serial Cables highlighted a family of Gen5 PCIe M.2 to E3 EDSFF adapters for lab and validation use. - The company says engineers can load one or two M.2 NVMe SSDs into the adapter, mount it in a tray, and install it in an E3.S enclosure. - The hardware is available now, and a Gen6 version is in development.

The details: - The lineup currently includes a Gen5 PCIe M.2 to E3.S Adapter (1x4) with Tray for x4 applications. - The single-port model ships with the E3.S tray and carries SKU PCI5-AD-E3M2-1X4-E3S. - The lineup also includes a Gen5 PCIe E3 to M.2 (2x2) Adapter for 2x2 applications. - The dual-port model maps two independent PCIe Gen5 M.2 connectors across the four EDSFF lanes, with CN1 assigned to lanes 0:1 and CN2 assigned to lanes 2:3. - The 2x2 adapter holds two M.2 SSDs in a single E3.S slot. - Both adapters are PCIe Gen5 parts and are designed to preserve signal integrity for testing. - M.2 SSDs are not included. - The 2x2 adapter includes piano switches SW1 and SW2 for per-drive control. - Those controls can enable or disable the 3.3V output, assert PWRDIS, drive PERST# reset, select M.2 VIO at 1.8V or 3.3V, and manage PRSNT# present detect and EDSFF SMBus pull-ups. - Each port can be exercised independently without recabling or swapping hardware. - The board includes per-drive green M.2 activity LEDs, a red host LED driven by the EDSFF connector, and a blue 3.3V power LED. - The board supports M.2 modules up to 3.2mm connector height. - The board brings out sideband and SMBus signals, including per-drive manufacturing data and clock, on accessible headers. - The board measures 110mm by 69mm. - Serial Cables says the adapter fits standard trays already used in E3 EDSFF lab enclosures. - The company says the design is useful for drive vendors, system OEMs, and hyperscale validation teams that want more test coverage without buying additional E3.S drives.

Between the lines: - The adapters point to a common lab strategy: use less expensive media for development work while keeping the enclosure and signal path representative of production systems. - The planned Gen6 version suggests Serial Cables wants to follow next-generation PCIe platforms with the same test approach.

What's next: - Serial Cables says the Gen6 model is expected in Q4 2026. - The Gen5 adapters are available now. - Pricing, lead times, and ordering are available by contacting Serial Cables.

The bottom line: - Serial Cables is trying to make E3 qualification and validation cheaper by turning standard M.2 SSDs into E3.S test media without changing the lab enclosure.