Will this accommodate G751JT: 16.4 x 12.5 x 1.7 ?

Yes. Internal dimensions are 16.5" wide x 13" high x 6.5" deep, and since the depth has plenty of 'wiggle room' you should be able to put the laptop in the internal pouch and have it sit slightly diagonally across the width.

Questions & Answers: Alpine Swiss Rolling Briefcase Laptop Bag For Men Women Hard Side Catalog Case Wheels Legal Dividers Lawyer Attache Case Carry-On Business Travel Bag

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Alpine Swiss Rolling Briefcase Laptop Bag For Men Women Hard Side Catalog Case Wheels Legal Dividers Lawyer Attache Case Carry-On Business Travel Bag

TSA APPROVED CARRY ON SIZE - Measurements 18 L x 16 H x 8.5 W TSA approved carry-on size for all carriers. Inside measurements 16.5 x 13 x 6.75
EASY ORGANIZATION - Classic catalog case design main section with a legal-size hanging file divider. Front flap organizer pocket fully zips down on both sides for easy access with card slots, pen holder and a slip pouch. Zip around front accordion file divider accommodates letter A4 or legal-size documents. Top Handle & lockable 1.5 side release buckles. Luggage locks not included.
SMOOTH HANDLING - Push-button locking telescoping rolling handle system. Extremely maneuverable rubber wheels with curb impact protection frame.
DURABLE CONSTRUCTION - Made with a sturdy hard sided frame to last, riveted attachments for all components like the handles and wheels. Tear and puncture resistant ballistic nylon outer material.
WARRANTY - Comes with Alpine Swiss manufacturers warranty.

$119^.99 –