// Memory Card Connectors

CFexpress Type A

CFexpress Type A is Sony proprietary camera memory using one PCIe 3.0 lane for up to 880 MB/s read speed. Used in Sony Alpha a7 a9 ZV-E1 cameras alongside SD cards in dual-slot cameras.

// Specifications

Standard

CompactFlash Association CFexpress Type A

Interface

PCIe 3.0 x1 NVMe

Max Read

880 MB/s

Dimensions

20 x 28mm smaller than Type B

Use Case

Sony Alpha a7IV a7SIII a9III cameras

Note

Not compatible with CFexpress Type B

// Pin Reference Table

Pin	Name	Function	Type
1	GND	Ground	GND
2	PCIe TX+	PCIe lane TX positive	BUS
3	PCIe TX-	PCIe lane TX negative	BUS
4	GND	Ground	GND
5	PCIe RX+	PCIe lane RX positive	BUS
6	PCIe RX-	PCIe lane RX negative	BUS
7	REFCLK+	Reference clock positive	BUS
8	REFCLK-	Reference clock negative	BUS
9	VCC	3.3V power	PWR
10	PERST#	PCIe reset active low	I/O