TAIPEI—With a little help from a riser card and the brand-new PCIe 4.0 interface, PC component maker Gigabyte created a Frankenstein SSD capable of astonishing data transfer speeds.

The resulting prototype, unveiled here at Computex on Tuesday, is a fusion of four separate M.2 SSDs, each with 2TB of capacity. When they’re all installed on a PCIe riser card and set up as a single 8TB RAID array, the complete package can read and write data at a rate of 15GBps.

It’s an amazing feat. The fastest SSDs on the market today top out at around 3,500MBps, which means Gigabyte’s creation is more than four times as fast. While such speeds are certainly achievable with an external array of hard drives housed in a giant enclosure, getting them from a single PCIe card that will fit onto a desktop PC is all but impossible with existing consumer parts.

While the RAID configuration can greatly boost speeds, part of the reason Gigabyte’s setup works is because it uses the PCIe 4.0 standard, which just became commercially available in consumer PCs with the launch of AMD’s 3rd Generation Ryzen CPU platform this week. Individual SSDs using the new standard can achieve speeds greater than 5,000MBps compared with the approximately 3,500MBps of the PCIe 3.0 interface.

To keep the giant drive cool, Gigabyte fitted a finned aluminum heatsink on top of the four M.2 slots, and mounted a cooling fan on top of that. The company then showed off the functioning drive at Computex using the Crystal DiskMark benchmark utility (the same one PCMag uses to test SSDs), which recorded a read speed of 15,376MBps.

Gigabyte’s creation will mainly interest multimedia editors, gamers, and other power users who need to move many more gigabytes of data than the average PC owner. The company plans to sell its PCI 4.0 riser, so you could theoretically bring four of your own SSDs and build a similarly fast drive yourself.

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