The Rocstor Rocbolt Premium and Heavy-Duty USB Type-A Keyed Cable Lock is specially and uniquely designed to secure Macbook, Macbook Pro, and Mac Pro computers utilizing its USB Type-A port. This uniquely designed Rocbolt Keyed Cable system is essential for all customers using their valuable Macbook, Macbook Pro, or Mac Pro in offices, schools, and other public areas. Rocbolt security USB locks provide an exceptional asset security and helps to reduce theft. They are tested for torque/pull, foreign implements, lock lifecycle, corrosion, key strength, and other environmental conditions. Nearly thousands of notebooks and other portable devices are stolen everyday protect your valuable assets by using the 6ft heavy-duty Rocbolt cable keyed USB lock system. Two (2) keys are provided with each lock system. Rocstor Rocbolt provides a strong and heavy-duty lock head which prevents intruders tampering with the lock. Rocbolt lock comes standard with 6ft galvanized heavy-duty steel cable.