Intégral Peripherals

Intégral Peripherals, Inc.

Company type	Private
Industry	Computer hardware
Founded	1990
Founder	Steve Volk, Jim Morehouse, John Blagaila
Defunct	1998
Fate	Bankruptcy; acquired by H&Q Asia Pacific
Headquarters	Boulder, Colorado , United States
Area served	Worldwide
Key people	Steve Volk (founder)
Products	Hard disk drives (1.8-inch and 2.5-inch)
Number of employees	300 (global, 1996)

Intégral Peripherals, Inc., commonly known as Intégral, was a US-based computer hardware manufacturer located in Boulder, Colorado, operating from 1990 until 1998. The company was a trailblazer in producing hard disk drives featuring 1.8-inch platters, which were more compact than the conventional 2.5-inch drives typically found in laptops and portable gadgets. Although initially met with market hesitation, Intégral secured significant design contracts during the mid-1990s with prominent corporations such as IBM, Hewlett-Packard, and Toshiba. The firm declared bankruptcy in 1998 after its investors pulled out in the wake of the 1997 Asian financial crisis, leading to its acquisition by the private equity group H&Q Asia Pacific.

Establishment (1990–1991)

Intégral was founded in 1990 in Boulder, Colorado by Steve Volk, Jim Morehouse, and John Blagaila, all of whom previously worked at Longmont-based PrairieTek, recognized as the pioneer of 2.5-inch hard drives. The startup concentrated on creating smaller 1.8-inch hard disk drives aimed at laptops and handheld PCs. Operating from a 16,000-square-foot facility that included limited manufacturing capabilities, Intégral produced several thousand units monthly for prototype runs and small-scale orders. Plans were made to shift large-scale manufacturing to Singapore starting in 1991. The initial funding totaled US$7 million, entirely invested by East Asian backers comprising three computer system manufacturers, six hardware vendors, and one distributor.

Market Launch (1991–1993)

The first production units of the 20-MB Mustang 1820 were delivered by Intégral in August 1991. By September of that year, construction of their Singapore plant had yet to commence, and output at the Boulder site was restricted to 4,000 drives monthly—less than anticipated. To boost manufacturing capacity and address competitive pressures, Intégral secured an additional $15.5 million in late 1991 and engaged Fuji Electric for drive production in Singapore. Early in 1992, Fuji began manufacturing the Mustang 1820 and subsequently the 40-MB Stingray 1842, a dual-platter model within the 1.8-inch category.

By September 1992, Intégral's workforce at its Boulder headquarters had grown to 50 employees. In October, the company entered a cross-licensing agreement with Quantum Corporation to broaden its product range. Although sales as standalone units were strong, design wins for integration into preassembled systems remained limited aside from Toshiba’s Dynanote pen tablet.

In early 1993, Intégral introduced its initial PC Card hard drives—the Ranger 1841P (40 MB) and Cobra 1882P (85 MB)—designed specifically for laptops equipped with PC Card slots. These models featured enhanced durability with a shock resistance rating of 100 g.

By that year, Intégral commanded leadership within the 1.8-inch hard drive segment, accounting for most of the approximately 150,000 units sold. Competitors included MiniStor Peripherals—who had pioneered PC Card drives shipments in early 1992—alongside Aura Associates, Western Digital, and Maxtor. As PC Card slot adoption increased among laptops, Intégral expanded its Singapore workforce from 29 to 56 employees in November 1993 and doubled monthly production capacity from 10,000 to 20,000 units.

Throughout 1994, despite subdued overall sales volumes—shipping between a quarter-million to half a million units against an anticipated target of 3.5 million—Intégral retained its leading position within the niche 1.8-inch drive market segment. This underscored ongoing challenges in expanding market demand despite vigorous growth initiatives.

Success (1994–1997)

In October 1994, Intégral introduced the 420-MB Cobalt 420 PC Card drive alongside the Viper series, distinguished as the first hard disk to incorporate a multi-chip module IC. This innovation allowed for a compact form factor featuring a three-platter, six-head configuration. During these years, Intégral achieved significant design partnerships with leading corporations such as Hewlett-Packard for the HP OmniBook, IBM for its ThinkPad laptops, as well as Toshiba and Fujitsu for their pen tablet products.

By April 1995, with MiniStor bankrupt and Maxtor withdrawing from the 1.8-inch drive sector, Intégral and Calluna Technology remained the sole manufacturers in this niche. Although Intégral commanded 68 percent of this specialized market, it broadened its portfolio in May 1995 by entering the 2.5-inch hard drive arena with the Platinum series. Utilizing its prior experience from 1.8-inch drives, the Platinum/1010 model emerged as one of the earliest 1-GB drives in the 2.5-inch category and was also the slimmest available at that time. This strategic expansion fueled a remarkable revenue surge from $15 million in 1994 to $69 million in 1995. By April 1996, Intégral employed approximately 140 staff members within the United States and had a global workforce totaling around 300.

Decline (1997–1998)

The Asian financial crisis of 1997 severely undermined Intégral’s financial stability, eroding investor trust. Early in 1998, the company ceased production of its leading 1.8-inch drives, effectively relinquishing that segment to competitor Calluna. Confronted with mounting financial challenges, Intégral filed for Chapter 11 bankruptcy protection in March 1998, reporting assets worth $3.5 million against liabilities totaling $25 million. In June of that year, Mobile Storage—a subsidiary of private equity firm H&Q Asia Pacific—acquired Intégral’s assets valued at $5.5 million along with $1.7 million in license revenue.

After leaving Intégral, founder Volk launched DataPlay in Longmont, focusing on pioneering small-diameter optical discs measuring 32 mm, further underscoring his ongoing leadership and innovation within data storage technology sectors.