152x

This is a line of used to connect serial devices to an Ethernet network.

Used in HP LaserJet Pro 4004 and MFP 4104 series printers. This is a line of used to connect

Angle measures, trigonometric functions, graphs (amplitude/phase shift), identities, and solving equations. graphs (amplitude/phase shift)

Features dual Ethernet ports to ensure connection reliability in industrial environments. EKI-1521 has 1 port

The "x" changes based on the number of ports (e.g., EKI-1521 has 1 port, EKI-1524 has 4). Other Niche Mentions

Roughly 9,700 pages , which is significantly higher than the standard 152A version.