Home / Shop / Browse By Category / Telephone Systems / KSUs / ESF-XE-10 Expansion KSU for Professional Level IIA 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 8KSU-A1 8 Slot Cabinet with Power Supply Browse By Manufacturer , NEC NEC Aspire 0891027 2PGDAD Door Box Adapter Browse By Manufacturer , NEC NEC Aspire S 8 Port Digital Station Card 0891051 Browse By Manufacturer , NEC NEC 0892180 Aspire 4 Port Intramail Voicemail System