The ML370 G5 utilizes the newest technologies for blazing performance - the best performing Intel Xeon processors with an 1333 MHz front side bus, up to 64GB of PC2-5300 Fully Buffered DIMMs (DDR2-667) with 4:1 interleaving memory, six PCI-Express I/O slots, two PCI-X slots and a Smart Array controller. The HP ML370 consistently ranks at the top of TPC-C benchmarks for Performance and Price/Performance. Tool-free internal serviceability makes component exchanges a snap! Snap-on quick deploy slide rails included with rack models and tower-to-rack conversion kits enable rapid installs to save valuable time.