Cross-Connect Latency

Cross-Connect Latency is the delay incurred when connecting two different pieces of hardware within a data center. In high-frequency trading, this connection is the physical link between the trader's server and the exchange's gateway.

Minimizing this latency is a key part of co-location strategy. Every extra meter of cable or additional switch adds nanoseconds to the round-trip time.

Traders work closely with data center providers to ensure the most direct, low-latency cross-connects possible. This is the last mile of optimization in the quest for speed.

It highlights how physical network architecture directly influences financial market performance.