Join Sealevel for AUSA 2023

Join us during AUSA 2023 at Booth 1247 to take the industry-leading Relio® R1 Rugged Industrial Computer for a test drive, and experience firsthand the unit’s ability to withstand extreme conditions – particularly shock and vibration. Booth visitors will be entered to win a YETI Roadie® 60 Wheeled Cooler. Sealevel is partnering with Call Sign Coffee Company, a Service-Disabled Veteran-Owned Small Business (SDVOSB) Project and fellow AUSA member, to provide coffee to booth visitors.

Read Our Military & Aerospace Brochure

Equipping Warfighters for the Future

Sealevel Systems, Inc. is the leading provider of critical communications hardware and software to all major defense and aerospace contractors.

We are committed to a first-in-industry lifetime warranty on I/O and long-term availability of all products, beyond the life of your mission.

Sealevel Systems, Inc. is the industry leader in COTS and full custom design and manufacturing for wide-ranging industry leaders like GE Aerospace, L3 Harris, PeriGen, and Wi-Tronix, as well as every major US and Allied nations military contractor including Northrop Gruman, Raytheon, Boeing, and NAVWAR.

Featured Products

Rugged SuperSpeed 7-Port USB 3.1 Hub

Rugged SuperSpeed 7-Port USB 3.1 Hub with Battery Charging Downstream…

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ACB-MP.PCIe

Low Profile PCI Express 1-Port RS-232, RS-422, RS-485, RS-530, RS-530A,…

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Ultra 530.LPCIe

Low Profile PCI Express 1-Port RS-232, RS-422, RS-485, RS-530 Serial…

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ACB-MP+4.PCIe

PCI Express 4-Port RS-232, RS-422, RS-485, RS-530, RS-530A, V.35 Synchronous…

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Relio R2 Synchronous Serial Server

Relio R2 4-Port Synchronous Serial Server - Configurable Solid-State Industrial…

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ACC-188

ACC-188 USB Synchronous Serial Radio Adapter with Quick Disconnect Cable…

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Relio R1

Relio R1 Industrial Computer - Compact, Rugged, and Configurable

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Rugged SuperSpeed 4-Port USB 3.1 Hub

Rugged SuperSpeed 4-Port USB 3.1 Hub with Battery Charging Downstream…

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Bring It On

Sealevel was founded in 1986 with a commitment to providing mission critical I/O and computing solutions. Today we’re proud to say that our products go all over the world. But it all starts in Liberty, South Carolina.

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From wide-temperature industrial computers, to I/O intensive fetal monitoring systems, our team continues to develop solutions for unique problems across industries and platforms.