What are the main benefits or performance improvements I can expect after installing this upgrade kit?

The main benefits of installing this upgrade kit include an increase in bandwidth by 30%, providing up to 1750 MB/s, and the addition of two Thunderbolt 3 ports.

Questions & Answers: Sonnet Thunderbolt 3 Upgrade Kit for xMac Mini Server #BRD-UPGRTB3-XM

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Sonnet Thunderbolt 3 Upgrade Kit for xMac Mini Server #BRD-UPGRTB3-XM

Easy to Install 40Gbps Thunderbolt 3 Upgrade Card - Replaces Existing 20Gbps Thunderbolt 2 Interface Board
Improves Performance with High-Bandwidth PCIe Cards - Provides 30% More Bandwidth (Up to 1750 MB/s)
Two Thunderbolt 3 Ports
0.5-meter Thunderbolt 3 (40Gbps) cable
ThunderLok 3 Thunderbolt Connector Retainer Clip

$232^.42 –