About ATTO

About ATTO Technology, Inc

For 30 years ATTO Technology, Inc. has been a global leader across the IT and media & entertainment markets, specializing in network and storage connectivity and infrastructure solutions for the most data-intensive computing environments. ATTO works with partners to deliver end-to-end solutions to better store, manage and deliver data. Working as an extension of customer’s design teams, ATTO manufactures host adapters, network adapters, intelligent bridges, Thunderbolt™ adapters, and software. ATTO solutions provide a high level of connectivity to all storage interfaces, including Fibre Channel, SAS, SATA, iSCSI, Ethernet, NVMe and Thunderbolt. ATTO is the Power Behind the Storage.

ATTO Technology, Inc. Executive Team

Leading the storage connectivity industry in innovation, ATTO Technology, Inc. is led by a dedicated core of experienced technology executive with many years of excellence in operations, finance, research and development, sales and marketing.

Timothy J. Klein

Timothy J. Klein – President, CEO and co-founder. An experienced entrepreneur, Klein has led ATTO since its inception in 1988 and is a key member on a number of Western New York leadership boards and industry associations. Prior to founding ATTO, he was employed as a systems engineer with Barrister Information Systems, a developer of mini computers and software. Prior to that Klein worked as a design engineer with Motorola. He received his B.S. in Electrical Engineering from the University at Buffalo.

David A. Snell

David A. Snell – Vice President of Engineering, Chief Technology Officer and co-founder. Snell has led all aspects of research and development for ATTO Technology since 1988. Prior to founding ATTO, he was a systems engineer with Barrister Information Systems. He received his B.A. in Computer Science from Hiram College.

James F. Masiello

James F. Masiello – Vice President of Finance and Human Resources. Masiello is a Certified Public Accountant and Certified Management Accountant. Before joining ATTO in 1994, he was employed at Ernst & Young, most recently as a senior manager. Masiello is a Senior Professional in Human Resources and received his B.B.A. in Accountancy from the University of Notre Dame.

Timothy J. Boser

Timothy J. Boser – Vice President of Operations. Prior to joining ATTO in 1993, Boser was Director of Technology Transfer at the Western New York Technology Development Center, Inc. He has also held management positions with Amherst Systems, a simulation software developer primarily for defense applications. Boser received his B.S. in Electrical Engineering Technology from the Rochester Institute of Technology and an M.B.A. from the University at Buffalo.

Founded in 1988 by Timothy J. Klein and David A. Snell, ATTO has established a solid business model with a strong track record of profitability. This model is based on continuously building on our core technology base to develop unique, quality products while establishing long-term customer relationships. All of our products are engineered and assembled in the United States allowing more direct control of quality and customization. ATTO's engineering team has developed patented technology in the areas of data efficiency, system load balancing and target path selection as well as other areas that are core to many of our products and their superior operation. Our company is ISO 9001:2015 certified and has delivered more than an estimated 2.5 million products to the market, in a broad range of storage applications and environments including:

  • Storage-intensive applications such as database management, online transaction processing (OLTP), E-mail, Internet serving and document management solutions.
  • Streaming media applications such as digital video, digital audio, film, broadcast and video-on-demand solutions.
  • Image-intensive applications such as mapping, pre-press, publishing, printing, CAD/CAM, medical and document imaging.
  • Server environments for direct attach and/or network attached storage such as SAN and NAS with disk, tape, optical, CD or other storage media.
  • Enterprise backup environments such as tape library connectivity, disk-based backup and serverless backup solutions.
  • Embedded specialty environments demanding performance and connectivity solutions for data storage and movement.

ATTO's products are sold worldwide directly to Original Equipment Manufacturers (OEMs) and systems integrators as well as through ATTO authorized distributors and resellers. Our OEM customers encompass a wide range of prestigious technology companies including Apple, EMC, NetApp, Hewlett-Packard, Harris Corp., Grass Valley, Quantum, Avid Technology, Overland Storage, NEC, Unisys and many more. ATTO customizes technology to meet the needs of OEMs through a flexible, systems-level approach to embedded solutions. Ability to maximize system performance has proven to be strategic in establishing ongoing alliances with many leading companies. With a vast knowledge of high-end computing, ATTO has been able to leverage its advanced technology into a full range of platform support including Linux, Windows, Mac, Unix and various other proprietary systems. ATTO's engineering team has developed patented technology in the areas of data efficiency, system load balancing and target path selection as well as other areas that are core to many of our products and their superior operation.

ATTO works closely with Independent Software Vendors (ISV), hardware vendors and industry groups to ensure interoperability and easy integration for our customers. Conformance to industry standards and open-system architectures (including standard form factors) accelerates efforts to ensure system-wide interoperability and quicker time-to-market. Included in our commitment to develop industry-leading storage solutions, is ATTO's state-of-the-art interoperability lab where design validation, application testing and extensive 3rd party product testing is attained.

Our award winning product lines are designed to satisfy a comprehensive range of OEM and end-users' storage needs in breadth of products and solution sets. Our products are developed from a synergistic core architecture of hardware and software, which is leveraged across all product lines. Leveraging this core technology also helps accelerate deployment into new markets and entirely new product categories. From host adapters and bridges to storage controllers and software our products are designed to efficiently and cost-effectively help customers manage, store and deliver their data. Leveraging new storage architectures and transport protocols, our products deliver blazing fast performance, one click installation and smooth data streaming. Our products are:


ATTO manufactures Host Bus adapters, intelligent bridges, network interface cards, Thunderbolt devices and management software designed for high-end storage environments. Our solutions provide a high level of connectivity to interfaces including Fibre Channel, SAS, SATA, iSCSI, 10GbE, 40GbE, 25/50/100GbE, FCoE and Thunderbolt™. Several of ATTO's products offer embeddable options enabling you to create customized, high-performance solutions.

Host Bus Adapters:

Ethernet Adapters

Thunderbolt Devices

Fibre Channel intelligent Bridges:

Ethernet intelligent Bridges:

Management Software:


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