Digi International offers net-centric Net+ARM processors that the company based on ARM7 and ARM9 cores. The NS9215 and NS921 networking processors with ARM926EJ-S cores operate at 75 and 150 MHz; both chips feature 10/100-Mbps Ethernet. The NS9360, NS9750, and NS9775 employ the ARM926EJ-S core. The NS9360 operates at 177 MHz and integrates 10/100-Mbps Ethernet, USB (Universal Serial Bus), an LCD, IEEE 1284, and serial I/O. The NS9750 operates at 200 MHz and includes all of the NS9360 features, plus PCI (Peripheral Component Interconnect) support. The NS9775 color-laser-printer processor operates at 200 MHz and integrates 10/100-Mbps Ethernet, USB, and PCI to improve the cost performance of color-laser printers. Digi based the NS7520 on the ARM7TDMI core. It operates at 55 MHz and integrates 10/100-Mbps Ethernet, serial I/O, and general-purpose interface. Digi supports development for the 32-bit Net+ARM microprocessor with its royalty-free Net+OS advanced networking software, development tools, and real-time operating system. Support for Linux and Microsoft Windows Embedded CE 6.0 is also available.