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PCI Express Mini Card (also known as Mini PCI Express, Mini PCIe, Mini PCI-E, mPCIe, and PEM), based on PCI Express, is a replacement for the Mini PCI form factor. It is developed by the PCI-SIG . The host device supports both PCI Express and USB 2.0 connectivity, and each card may use either standard.
The physical phenomena on which the device relies (such as spinning platters in a hard drive) will also impose limits; for instance, no spinning platter shipping in 2009 saturates SATA revision 2.0 (3 Gbit/s), so moving from this 3 Gbit/s interface to USB 3.0 at 4.8 Gbit/s for one spinning drive will result in no increase in realized transfer rate.
PCIe lanes [d] Gen 4 None ×8 ×12 x10 x12 ×8 ×12 Gen 3 Up to ×8 Up to ×4 Up to ×8 Up to x4 Up to ×4 Up to ×8 USB support USB 2.0: 6 12 6 12 USB 3.2 Gen 1x1 (5 Gb/s) 2 None None USB 3.2 Gen 2x1 (10 Gb/s) 2 4 8 2 6 4 8 USB 3.2 Gen 2x2 (20 Gb/s) None 1 [e] 2 [f] None 1 [e] 2 [f] Storage features SATA III ports Up to 4 Up to 8 Up to 4 Up to ...
3.0 is the "base" or "core" specification. The AdvancedTCA definition alone defines a Fabric agnostic chassis backplane that can be used with any of the Fabrics defined in the following specifications: 3.1 Ethernet (and Fibre Channel) 3.2 InfiniBand; 3.3 StarFabric; 3.4 PCI Express (and PCI Express Advanced Switching) 3.5 RapidIO
PCIe lanes [d] Gen 4 None ×8 ×12 ×8 ×12 Gen 3 Up to ×8 Up to ×4 Up to ×8 Up to ×4 Up to ×8 USB support USB 2.0: 6 12 6 12 USB 3.2 Gen 1x1 (5 Gb/s) 2 None USB 3.2 Gen 2x1
Model Release date PCIe support [a] Multi-GPU USB support [b] Storage features Processor overclocking TDP CPU support Architecture Part number CrossFire SLI SATA ports RAID AMD StoreMI
Mobile PCI Express Module (MXM) is an interconnect standard for GPUs (MXM Graphics Modules) in laptops using PCI Express created by MXM-SIG. The goal was to create a non-proprietary, industry standard socket, so one could easily upgrade the graphics processor in a laptop, without having to buy a whole new system or relying on proprietary vendor upgrades.
On August 2, 2022, the CXL Specification 3.0 was released, based on PCIe 6.0 physical interface and PAM-4 coding with double the bandwidth; new features include fabrics capabilities with multi-level switching and multiple device types per port, and enhanced coherency with peer-to-peer DMA and memory sharing.