UNITEK OT157BL RJ45 Plug Boot Strain Relief, Blue, 6 mm, 100-Pack

When a network cable fails, it is rarely the copper that gives out first—it is the fragile locking tab on the RJ45 plug. One snagged cable in a crowded patch panel or behind a desk can break that tab, leaving the plug loose and the connection intermittent. The UNITEK OT157BL tackles this exact failure point with a simple, effective solution: a snug-fitting PVC boot that slips over the plug and shields the tab from accidental pulls and snags. Supplied in a practical 100-piece pack, it is ready to protect every cable in your installation, from a single workstation to a full rack.

Highlights

• Fits RJ45 plugs with cable diameters up to 6 mm, covering Cat5e, Cat6, and most standard Ethernet patch cables.
• Snagless design: the boot's tapered profile prevents the locking tab from catching on other cables, rack edges, or cable management fingers.
• Made from flexible PVC that absorbs stress at the plug-to-cable junction, reducing the risk of internal conductor breakage.
• Reusable: the boot can be removed and reinstalled without damage, allowing for re-termination or cable re-routing.
• Bulk pack of 100 pieces in blue, ideal for colour-coding network segments or simply keeping a consistent look.

In daily use

Installing the OT157BL takes seconds: slide the boot onto the cable before crimping the plug, then push it forward until it seats over the plug body. The boot's internal profile grips the cable jacket firmly, so it stays in place even when cables are moved. In high-density environments, the snagless shape lets you pull a single cable out of a bundle without dragging its neighbours along. The blue colour provides quick visual identification—use it to mark uplinks, VoIP runs, or any group you want to spot at a glance. Because the PVC is pliable, it also eases the strain when a cable is bent sharply near the plug, extending the life of the termination.

Full specifications

• Brand: UNITEK
• Model: OT157BL
• MPN: OT157BL
• EAN: 4894160047816
• Product type: RJ45 plug boot / strain relief
• Connector compatibility: RJ45 (8P8C) plugs
• Maximum cable diameter: 6 mm
• Material: PVC (polyvinyl chloride)
• Colour: Blue
• Quantity per pack: 100 pieces
• Function: Strain relief, cable protection, snagless design
• Prevents snagging: Yes
• Protects latch: Yes
• Enhances cable durability: Yes
• Easy installation: Yes
• Reusable: Yes
• Packaging type: Bagged
• Environmental compliance: RoHS compliant

Final note

For installers and IT technicians, the UNITEK OT157BL is a low-cost insurance policy against the most common cause of patch cable failure. A bag of 100 covers a whole project, and the blue colour keeps your network tidy and traceable.