Home / Shop / Browse By Category / Telephone Systems / KSUs / ESF-XE-10 Expansion KSU for Professional Level IIA View cart “NEC Aspire 0891027 2PGDAD Door Box Adapter” has been added to your cart. ESF-XE-10 Expansion KSU for Professional Level IIA$0.00 ESF-XE-10 Expansion KSU for Professional Level IIA quantity Add to cart SKU: 720105 Categories: All NEC Products, Browse By Category, Browse By Manufacturer, Electra Pro II, KSUs, NEC, Telephone Systems Tags: expansion KSU, Key Service Unit, KSU Description Description ESF-XE-10 Expansion KSU for Professional Level IIA Related products Browse By Manufacturer , NEC NEC Aspire 8ESIU-PR2 8 Station Digital Station Card Circuit Card Browse By Manufacturer , NEC NEC Aspire 8SLIU-1A 8 Analog Station Card Browse By Manufacturer , NEC NEC Aspire 0890045 34 Button Display Speakerphone Black Browse By Manufacturer , NEC Nitsuko-TIE 10817 UAT 16 SpeakerPhone With Display