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Add two M.2 NVMe SSDs to your NAS with a PCIe 3.0 expansion card.PCIe 3.0PCIe Gen 3 x4 provides up to 32 Gbps transfer speeds to your NAS.Ready-to-useNo drivers or extra software are required. SSD cache & volumeConfigure SSD caching, an SSD volume, or Qtier (QNAP’s auto-tiering technology) to improve overall NAS performance. Efficient cooling moduleKeeps your SSDs cool and maintains high performance.Tool-less designEasily install M.2 SSDs in your NAS with a screw-less, easy-to-use locking method.LED indicators & thermal sensors Monitor the real-time status and temperatures of the M.2 SSDs.Fast, efficient, and easy-to-useThe efficient architecture of the QM2-2P-344A allows you to easily install NVMe SSDs and maximize their performance with a quiet cooling module.SSD cachingEnable SSD caching to optimize system performance and reduce I/O latency. Caching is especially ideal for IOPS-demanding applications such as virtual machines and systems with a large number of small files.QtierAlternatively, you can set up Qtier auto-tiering to your NAS to improve overall system performance and maximize storage utilization.Keep SSD coolA quiet cooling module (heatsink and smart fan) keeps your SSDs running with dependable high performance.Super-fast NVMe SSD storage volumePhotographers and videographers can tackle high-resolution RAW multimedia editing directly on NVMe SSD volumes. RAID configurations can help prevent data loss from drive failure.

The PCI2S4851050 2-Port PCI Serial Adapter Card (RS422/RS485) with 161050 UART adds two DB9 RS422/RS485 serial ports, using a single PCI expansion slot.The PCI serial card offers a high performance 16C1050 UART and supports both 2-wire and 4-wire RS485 modes. The card delivers an efficient single-chip design and a large 256-byte transit/receive FIFO buffer that work together to provide high-speed serial communication while reducing the overall load on the system CPU.With the included standard and low profile/half-height brackets, this PCI serial expansion card suits a broad range of system form factors, and is a perfect addition for connecting RS422/485 serial devices to a host computer. For added versatility, the RS422/RS485 adapter is able to accommodate 3.3 or 5V PCI/PCI-X slots.Backed by a StarTech.com lifetime warranty and free lifetime technical support.The StarTech.com Advantage- Much larger FIFO buffer than standard serial cards (256 byte vs. 32 or 64 byte) minimizes data loss and optimizes host efficiency- A simple jumper change allows you to select either RS422 or RS485 serial interface formats specific to your application- Standard and low profile/half-height bracket included, ensuring easy installation into almost any system