SanDisk Extreme PRO CFexpress 4.0 Type B Memory Card Listed on Amazon US

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SanDisk has listed the Extreme PRO SDCFEB CFexpress 4.0 Type B memory card lineup on Amazon US, spanning six capacities from 128GB to 4TB. The cards use a PCIe Gen4 interface and are rated for read speeds of up to 3700 MB/s and write speeds of up to 3500 MB/s.

Key highlights include the PCIe Gen4 interface, VPG1600 and VPG800/VPG400 Video Performance Guarantee ratings depending on capacity, SmartIdle low-power mode, and a rugged enclosure rated for 5-meter drops.

The card family covers six capacities, each with its own model number:

128GB — SDCFEB-128G-GN4NN
256GB — SDCFEB-256G-GN4NN
400GB — SDCFEB-400G-GN4NN
1TB — SDCFEB-1T00-GN4NN
2TB — SDCFEB-2T00-GN4NN
4TB — SDCFEB-4T00-GN4NN

Pricing & Availability

Amazon US listing prices were checked on July 6, 2026. SanDisk’s own website lists separate current prices for the same capacities, shown alongside for comparison.

Capacity	Model Number	SanDisk.com Price	Link
128GB	SDCFEB-128G-GN4NN	$199.99	Amazon US↗
256GB	SDCFEB-256G-GN4NN	$329.99	Amazon US↗
400GB	SDCFEB-400G-GN4NN	$399.99	Amazon US↗
1TB	SDCFEB-1T00-GN4NN	$749.99	Amazon US↗
2TB	SDCFEB-2T00-GN4NN	$999.99	Amazon US↗
4TB	SDCFEB-4T00-GN4NN	$1,699.99	Amazon US↗

Amazon US prices on this card line have shown a gap against SanDisk’s own listed pricing across every capacity checked. Flash memory pricing in general has been reported to move up and down more than usual recently, with rising NAND demand tied to AI data center storage buildouts cited as one factor putting pressure on supply. Prices on both Amazon and SanDisk’s site are subject to change and should be checked directly before purchase.

What We Like About the SanDisk Extreme PRO CFexpress 4.0 Type B

Up to 3700 MB/s read and 3500 MB/s write speeds — PCIe Gen4 interface speeds well above CFexpress Type B cards on the previous PCIe Gen3 generation
Six capacities from 128GB to 4TB — a single card line covering both short-form and long-session recording needs without switching card types
VPG1600 rating on 1TB–4TB capacities — a guaranteed minimum sustained write speed rating aimed at high-bitrate video capture
SmartIdle low-power mode — drops into a lower-power state when a compatible camera goes idle, rather than staying at full power draw

Performance and Video Recording Support

The card line uses a PCIe Gen4 interface, rated for sequential read speeds up to 3700 MB/s and sequential write speeds up to 3500 MB/s. SanDisk states this is intended to support recording at up to 12K resolution on compatible cameras, along with 4K, 6K, and 8K capture.

On the 2TB and 4TB capacities, SanDisk specifies a minimum sustained write speed of 3100 MB/s, intended to maintain consistent throughput during longer recording sessions. Video Performance Guarantee (VPG) ratings vary by capacity: the 1TB, 2TB, and 4TB cards carry a VPG1600 rating, while the 128GB, 256GB, and 400GB cards carry VPG800 and VPG400 ratings, denoting the minimum sustained write speed each capacity guarantees.

Power Management and Durability

SmartIdle technology switches the card into a lower-power state when a compatible camera is idle, rather than holding it at full power draw continuously. On the physical build, SanDisk rates the card’s enclosure to withstand drops of up to 5 meters and bends of up to 70 newtons of force.

Compatibility

SanDisk lists the Extreme PRO CFexpress 4.0 Type B card as compatible with cinema cameras, mirrorless cameras, and CFexpress Type B card readers.

What’s in the Box

SanDisk Extreme PRO CFexpress 4.0 Type B card (capacity as selected)

SanDisk Extreme PRO CFexpress 4.0 Type B Specifications / Technical Details

Specification	Details
Form Factor	CFexpress Type B
Interface	PCIe Gen4
Sequential Read Speed	Up to 3700 MB/s
Sequential Write Speed	Up to 3500 MB/s
Minimum Sustained Write Speed	3100 MB/s (2TB–4TB capacities)
Video Performance Guarantee	VPG1600 (1TB–4TB); VPG800 / VPG400 (128GB–400GB)
Power Management	SmartIdle low-power mode
Drop Resistance	Up to 5 meters
Bend Resistance	Up to 70 newtons
Dimensions	1.17″ x 1.52″ x 0.15″
Weight	9.5g
Warranty	Lifetime Limited Warranty
Compatibility	Cinema cameras, mirrorless cameras, CFexpress Type B card readers
Model Numbers	128GB: SDCFEB-128G-GN4NN / 256GB: SDCFEB-256G-GN4NN / 400GB: SDCFEB-400G-GN4NN / 1TB: SDCFEB-1T00-GN4NN / 2TB: SDCFEB-2T00-GN4NN / 4TB: SDCFEB-4T00-GN4NN

Frequently Asked Questions

What is the price of the SanDisk Extreme PRO CFexpress 4.0 Type B card?

Prices vary by capacity. As of July 6, 2026, Amazon US listed the 128GB at $270.99, the 256GB at $390.99, the 400GB at $542.99, the 1TB at $979.99, the 2TB at $1,304.99, and the 4TB at $1,954.99. SanDisk’s own website listed lower prices for the same capacities on the same date.

Why do the Amazon and SanDisk.com prices differ?

Retailer and manufacturer pricing for flash storage can move independently of each other, and both are subject to change based on market conditions, including reported NAND supply pressure linked to rising AI data center storage demand.

What resolution can this card record?

SanDisk states the card supports capture up to 12K resolution on compatible cameras, in addition to 4K, 6K, and 8K.

Does the write speed change between capacities?

Yes. The 2TB and 4TB cards are rated for a minimum sustained write speed of 3100 MB/s, and Video Performance Guarantee ratings also differ — VPG1600 on the 1TB–4TB cards versus VPG800/VPG400 on the 128GB–400GB cards.