< Previous AED > ALS > ALS Accessories > ZOLL Medical Manual Defibrillator Accessories > M Series Defibrillator Accessories > M Series Cases/Mounting Options Xtreme Pack II Upgrade for 12-lead for ZOLL M Series Defibrillators - includes base and modem extension cable. Part #: 7777-0129 Our Price: $210.00 Quantity: Previous Next Call or order online and receive: Same Day Shipping 30-Day Money Back Guarantee 110% Low Price Guarantee Authorized Distributor Exceptional Customer Service Overview Customer Reviews Reference Library Accessories VALUE PACKAGES Overview Xtreme Pack II Upgrade for 12-lead for ZOLL M Series Defibrillators - includes base and modem extension cable. Alternate Part Number(s): 7777-0129 Read more... Customer Reviews Review this item Reference Library Accessories The AED Superstore offers the best service, support, and largest selection of AED models for sale available anywhere! We're owned and operated by EMS professionals who continue to use automated external defibrillators in the field. You can count on us to help you make the right decision for your AED program!