| PRODUCT | COOLING AGENT | COOLING CAPACITY | POWER EFFICIENCY | INTEGRATION | PRICE |
| Sidecar heat exchange systems | |||||
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| APC InfraStruXure RP | Water | Up to 70kW | 2054 Watts (480V) | Contractor installation | approx: $23,000 |
| Rittal Liquid Cooling Package (LCP) | Water | 30-37kW | 1000-1800 Watts | Fits standard 19" rack servers. No additional hardware necessary. | $15-$20,000 |
| Liebert XDK, XDF | Water, water/glycol | 17kW, 14kW | 1400 Watts | Fits standard 19" rack servers. No additional hardware necessary.* | unavailable |
| IBM eServer Rear Door Heat Exchanger "Cool Blue" | Water | Approx:15kW (50K btu) | Unavailable | Door that hinges to a standard 42U rack. No additional hardware necessary. | $4,299 |
| Egenera BladeFrame EX | Glycol | Upper and lower cooling modules at 10kW each | 6900 Watts max (200-230 volts @ 20 or 30 amps) | 2 products: Liebert XD CoolFrame and Egenera Bladeframe EX.* | unavailable |
| Bottom mount heat exchange systems | |||||
| Knurr AG rack | Water | 10kW to 35kW | 1000-1800 Watts | Fits standard 19" cabinets with no additional hardware. | Unavailable |
| Chip-level cooling systems | |||||
| SprayCool M-Series | Uses 3M Flourinert, but compatible with other coolants | 12kW per rack | Less than 200W | Each server is fitted with a module which attaches to the SprayCool system at the back of the rack. | $25,500 |
*Liebert's XD system requires the XDP and XDC, which are the coolant pump and chiller, respectively.
This was first published in May 2007
Data Center Strategies for the CIO

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