The Calmark Birtcher part A280-4.80ET4L is a high-quality Series 280 Card Lok designed to securely hold and protect sensitive electronic components, such as printed circuit boards (PCBs) and electronic modules. This particular Card Lok features a short form factor, measuring 4.80 inches, making it ideal for compact applications where space is limited. With its robust construction and reliable locking mechanism, the Card Lok ensures stable and vibration-resistant mounting, preventing any accidental dislodging or damage to the cards. Whether used in industrial systems, telecommunications equipment, or other electronic devices, the Calmark Birtcher Series 280 Card Lok offers a dependable solution for securing and safeguarding valuable components.