. The HP Pro SFF 400 Desktop provides users in hybrid work environments with the commercial-grade configuration options and connectivity in a space-saving design. This PC is powered by the latest Intel® processor and protected with always-on security you can trust. Expansion bays and slotsThe HP Pro SFF 400 has an m.2 slot for WLAN and one for storage one PCIe x16 slot and one PCIe x1 slot. Connect up to 3 displaysIncrease productivity and tackle a range of workflows with video ports supporting up to three displays. Protected by HP Wolf SecurityHP Wolf Pro Security Edition PCs interlace HP Sure Click Pro with HP Sure Sense Pro providing more in-depth coverage than the standard versions through a 1-year or 3-year user license with HP Support.[5] This creates a powerful single solution that doesn’t require an IT-managed PC environment. Help protect our shared futureA high-efficiency power supply and molded-pulp packaging help reduce the impact on the environment. Windows 11Work anywhere without compromising on performance or security with Windows 11 powered by HP's collaboration and connectivity technology. Security is your top priorityThe HP Wolf Pro Security Edition provides preconfigured enterprise-level PC protection for small and medium sized businesses. BIOS management over the networkHP Sure Admin a modern BIOS management tool eliminates the need for a password or BIOS configuration utility in the OS by creating a digital signature that allows IT administrators to securely manage BIOS settings over a network. Browse confidentlyHelp protect your PC from websites and read only Microsoft Office and PDF attachments with embedded malware ransomware or viruses with hardware-enforced security from HP Sure Click. Automatic recovery from firmware attacksFirmware attacks can completely devastate your PC. Stay protected with HP’s self-healing BIOS - HP Sure Start Gen7 automatically recovers the BIOS from malware rootkits or corruption. HP Sure SenseMalware is evolving rapidly and traditional antivirus can’t always recognize new attacks. Protect your PC against never-before-seen attacks with HP Sure Sense which uses deep learning AI to provide exceptional protection against advanced malware. Erase your driveHP Secure Erase removes the contents of a hard drive for repurposing or reassignment. Simple PC managementSpend less time and get right to the updates you need with HP Support Assistant. Speed up the basics of IT managementThe HP Manageability Integration Kit helps speed up image creation and management of hardware BIOS and security through Microsoft System Center Configuration Manager..