Marketing Information: Backup Battery Module Gives Your Compatible Eaton UPS System Extended Runtime The 9PXEBM180RTUS offers extended battery runtime when used in conjunction with Eaton's TAA-compliant 9PX6KUS 9PX UPS system. It can also be daisy-chained for a maximum of four matching battery packs to deliver even longer extended-run operation. Heavy-gauge cabling with high-current DC connectors is included for safe, simple installation. Supports 3U Rack or Tower Installation This backup battery pack's multi-use form factor supports mounting in 3U of space in an EIA-standard 19-inch rack using the included 4-post rail kit. You can also adapt it for tower installation using the included support stands. TAA-Compliant for GSA Schedule Purchases The 9PXEBM180RTUS is compliant with the Federal Trade Agreements Act (TAA), which makes it eligible for GSA (General Services Administration) Schedule and other federal procurement contracts.