Maxim Integrated Products introduced its MAX4889B and MAX4889C 1:2 or 2:1 PCI Express® (PCIe) passive switches switch 4 half lanes of PCIe data between two destinations. The quad double-pole double-throw (DPDT) devices use 4 devices to convert 16 PCIe lanes into two sets of 8 lanes for use with either SLI™ or CrossFire™ graphics cards. The 3.5 × 9 mm 42-pin TQFN-packaged switches offer support for data rates >5 Gbps, flow-through pin configuration, 3.3 V supply voltage and operation in a temperature range from -40ºC to 85ºC. The MAX4889C supports SAS I, SAS II, and SAS 6.0Gbps data rates.