Brother M-K621 9 mm Black on Yellow Label Printer Tape

The Brother M-K621 9 mm Black on Yellow Label Printer Tape delivers vibrant, high-contrast labels for all your indoor organization needs. This 9 mm (3/8 in) wide, 8 m (26.2 ft) long thermal tape is non-laminated and features a standard-strength adhesive formulated for flat, dry surfaces. Compatible with a wide range of Brother P-Touch label makers—including the PT-65—this tape produces crisp black text on a bright yellow background without the need for ink or toner.

Product Features

Non-Laminated Paper Construction

Provides a smooth finish suited for indoor applications where moisture resistance and heavy-duty protection are not required.

Standard-Strength Adhesive

Designed to bond securely to flat, clean, dry surfaces and remove cleanly without residue or damage.

Thermal Printing Technology

Heat-activated printing requires no cartridges, ribbons, or ink—simply load the tape into any compatible Brother P-Touch label maker and print.

High-Contrast Black on Yellow

Ensures maximum legibility and visibility, making labels stand out on file folders, storage bins, shelves, and equipment.

Indoor-Use Recommended

Ideal for home, office, classroom, and hobby labeling on flat, dry surfaces for optimal performance and longevity.

Broad Device Compatibility

Works with all Brother P-Touch machines that accept MK-series 9 mm tapes, including PT-65, PT-85, PT-100, PT-110, and more.

Product Specifications

• Brand: Brother
• Model Number: M-K621
• Series: MK (Master Label)
• Width: 9 mm (3/8 in)
• Length: 8 m (26.2 ft)
• Text Color: Black
• Background Color: Yellow
• Material: Non-laminated paper tape
• Adhesive: Standard-strength, for flat, dry surfaces
• Printing Method: Thermal (no ink or toner required)
• Compatibility: Brother PT-65 and any P-Touch label maker accepting 9 mm MK tapes
• Recommended Use: Indoor applications on flat, clean, dry surfaces