Check the listing for details. PCI IDE Caching Controller TEKRAM DC-690C with Harris 80C286 20 MHz CPU + RAM. Condition: Used. Listed at 125.00 USD. PCI IDE Caching Controller TEKRAM DC-690C with Harris 80C286 20 MHz CPU & 4 MB RAM Greetings from Ukraine ! Please take a look at the photos in order to have a better and complete idea of condition. Items are safely packaged in antistatic wrap, bubble wrap and cardboard boxes. Packages are sent with priority registered airmail, including tracking number via Ukraine Post (Ukrposhta) If you think something is overpriced just contact me. I would gladly answer any questions regarding my listed hardware. Shipping: Worldwide Thank you ! Good ConditionTested in BIOS100% Genuine PhotosTracked International Shipping The DC-690C/DC-690CD offers RAID-1 (Redundant Array of Inexpensive Disks, level 1) hardware-based disk mirroring under all operating systems to safeguard your valuable data. In addition, the DC-690C/CD, a Green Cache controller, is designed to meet the environmental protection requirements by switching the storage system into sleeping mode in order to reduce the power consumption. Its caching capability is to relieve the bottleneck between slow I/O interfaces and IDE disk subsystems. Microprocessor-controlled Caching Algorithms are employed to easily handle heavy bus loading. The DC-690C/CD also provides the most flexible means of installing and upgrading the IDE drive, and is compatible with all major operating systems. Its on-screen Advanced Configuration Menu (or ACM) provides the following utilities: Disk Parameter Setup: Allows you to mirror or link two drives into one logical drive and enable the Track-Remapping function for drives larger than 528MB under the DOS environment. Controller Option Select: Green Cache (power saving), maximum of 4 hard drives supported, cache line size, and other useful features. Boot Drive Select: Choose which drive to boot from. Display Drive information: Displays all information available for each hard drive, such as Drive model/ Firmware version/ Serial#/ Cylinder/ Head/ Sector Low Level Format Mirror Initialization and Repair: Ease your initialization and repair preparation for mirroring drive pairs. Mirror Drive verification: Check for identical data throughout mirrored pairs. Disk Image Copy & Compare Performance Specifications RAID-1 Hardware disk mirroring support for all Operating Systems Green Cache: Power saving supports both controller and drive(s) Effective disk seek time: less than 0.3ms Maximum DTR (Disk-to-Cache): 5MB/sec Maximum DTR (ISA Bus-to-Cache): 20MB/sec Technical Specifications Bus Standard: 32-bit PCI Bus Microprocessor: 80C286 Cache DRAM: 80ns(or faster) 256KB/1MB/4MB SIMMs Flexible cache expandability: 512KB to 16MB Maximum I/O Bus Speed: 33Mhz Maximum 4 hard drives (plus 2 ATAPI IDE CD-ROMs with CD version) Functional Specifications Jumper-less design and Auto drive parameter scanning Compatible with all major Operating Systems and full driver support for: Windows 3.X and 95 (32-bit) Windows NT 3.X OS/2 2.x, 3.x Netware 2.x, 3.x, 4.x UNIX WD-1003 Emulation mode support Track remapping and automatic type table creation Enhanced INT 13 BIOS relocation Caching algrorithms: fully associated LRU, automatic read ahead, deferred write back, and elevated seeking Direct replacement for standard AT Bus interface card without reformatting the drive(s)