What Is Very High Density Cable Interconnect (VHDCI)?
What is VHDCI, then? Very High-Density Cable Interconnect is just a fancy name for a certain kind of cable that crams many wires into a small area. Like trying to fit a whole bunch of straws into a juice box, really. SCSI (Small Computer System Interface) connections, a kind of data transport between computers, use VHDCI. In other words, the number of connections you can make using standard wires is finite. However, a single VHDCI cable may accommodate up to 68 connections despite being only a little over an inch in diameter. "Very High Density" describes the extreme concentration of connections in a given area. VHDCI is different from other SCSI standards since it uses a 68-pin connector, which is physically smaller. This makes it suitable for use in confined locations like those found in computer server racks. Since internal computer areas are shrinking along with the size of today's computers, having connections that can squeeze through smaller openings is becoming increasingly vital. A further perk of VHDCI is that it allows for increased data transfer rates. The maximum data transfer rate for standard SCSI connections is 80MB/s, whereas the maximum for VHDCI cables is 160MB/s. That's a doubling of speed! And it can do more simultaneous data transfer because it has 68 connections. That being the case, why not just utilize VHDCI for all SCSI connections? It is going to only work with some SCSI drives out there. Connectors for standard SCSI devices can have either 50 or 68 pins, but for VHDCI cables, the latter is required. To put it another way, you need to double-check that your SCSI device and cable are both VHDCI-compatible before connecting them. For high-speed, high-density data transfers and SCSI connections in confined locations, VHDCI is the way to go. Before delving into VHDCI, make sure you have the proper tools.
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