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<!-- Generated by Broadridge Transform (tm) - http://www.broadridge.com -->
<!-- Created: Fri Apr 24 14:14:10 UTC 2026 -->
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    <loc xlink:type="locator" xlink:label="IncreasedeductionForChangeInFairValueFromPriorYearendToVestingDateOfAwardsGrantedPriorToTheCoveredYearThatVestedDuringTheCoveredYearMember" xlink:href="boxl-20260423.xsd#boxl_IncreasedeductionForChangeInFairValueFromPriorYearendToVestingDateOfAwardsGrantedPriorToTheCoveredYearThatVestedDuringTheCoveredYearMember"/>
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