The PCB looks impressively large occupying almost all the free space inside the case. The blue piece of textolite carries a lot of various chips and auxiliary elements. The PCB layout is clever overall, all the components being distributed evenly on the face side of the PCB. The reverse side has some surface-mounted components, a few indicators, and connectors.
There are a lot of components installed in the DS207+. We could find little information about some of them, so we’ll just name the main chips employed.
The NAS is based on Marvell’s Orion 88F5281 system-on-chip controller that incorporates a 500MHz ARM9 processor and supports PCI, PCI Express, Gigabit Ethernet and other interfaces.
The described model of the NAS comes with 128 megabytes of system memory in two 64MB DDR SDRAM chips from Hynix (HY5DU121622DTP).
The firmware is stored in a 4MB Spansion S29AL032D90 flash memory chip.
The Gigabit Ethernet port is based on an 88E1118 controller from Marvell you can meet on mainboards.
The GL850A host-controller is responsible for the three USB ports the DS207+ offers.
The two internal and one external SATA port are supported by the 88SX7042 controller from Marvell. This chip offers four SATA ports with RAID functionality.
The device’s controls and indicators are based on PIC16F627A and LC4032V chips. There are consoles for these two chips on the PCB, but the console connector for the PIC chip is not installed.
The processor is accompanied with two consoles, one of which is not installed. The missing console must be JTAG while the installed one is UART.