Lexar Professional GOLD CFExpress Type-A 320GB Memory Card and Reader Review

CF Express Type-A memory cards are a particularly niche product restricted for the most part to those newer Sony camera lovers; Sony A7S III, A1 and A7 IV.  It was that mid-choice between XQD and CFExpress Type-B but then XQD saw firmware upgrades enabling CFExpress Type B which left Type-A on its own.  Our first showing of Type-A cards saw products from Lexar and ProGrade and the complaint of small capacity appeared where camera professionals needed more room on their cards to satisfy their needs.  After all, Type-B cards were coming out as high as 2TB.  Good news for Sony lovers this morning is that we have the worlds first Lexar GOLD CF Express Type-A 320GB Memory Card and Card Reader on our Bench for a few tests!

The Lexar GOLD series of CFExpress Type-A memory cards are available in 80, 160 and now 320GB storage capacities.  The 320GB version we are testing today has listed specifications of up to 900MB/s read and 800MB/s write with the all important VPG (Video Performance Guarantee) 400 rating.  VPG400 is a fairly new rating put forward by the SD Association which is the regulating body that oversees memory cards and it guarantees that this card will never fall below 400MB/s sustained write speed.


Included with the card is a Lexar USB 3.2 Gen 2 10Gbps dual card reader that reads both the CF Express Type-A along with UHS-II SD cards up to a read speed of 312MB/s.  The card reader comes with a single foot long Type-A to Type-C connector where the Type-A connector can be removed converting this into a Type-C to Type-C connector, remembering of course that Type-C to Type-C is the only way to achieve the higher data transfer speeds.


Checking Amazon, we see that the Lexar Professional GOLD 320GB Type-A CF Express Type-A memory Card and Reader lists for $599.99, which has dropped from its previous $699.99 list price.  Even with the cards limited lifetime  warranty (2-years for reader), this is still a bit high when comparting to Type-B pricing, but as expected for such a niche product.  Let’s take a look at some metrics.


CFExpress Card testing at TSSDR differs slightly, depending on whether we are looking at consumer or enterprise storage media. For our Lexar Professional CFExpress Type A 320GB Gold Series Memory Card testing today, our goal is to test in a system that has been optimized with our SSD Optimization Guide.


For this Test Bench, the CPU C-States, Enhanced Intel SpeedStep Technology (EIST) and Intel Speedshift (P-States) have not been disabled. As you will see below, the system is also bumped to 5.1GHz with memory at full speed in its XMP 2 profile.


The components of this Test Bench are detailed below. All hardware is linked for purchase and product sales may be reached by a simple click on the individual item.


PC CHASSIS: Corsair 5000D RGB White Tempered Glass Chassis
MOTHERBOARD: ASUS ROG Maximus Z790 Hero Gen 5
CPU: Intel 13th Gen Core i9-13900K
CPU COOLER: Corsair Hydro Series H150i Capellix White
POWER SUPPLY: Corsair HX1000i Platinum Modular 80Plus
GRAPHICS: ZOTAC GeForce RTX 3080 Trinity White
MEMORY: Corsair Dominator Platinum RGB DDR5-5200 64GB
STORAGE: Sabrent Rocket 4 Plus Gen 4 4TB NVMe SSD
KEYBOARD: Corsair K70 PRO RGB Optical Mechanical Gaming
MOUSE: Corsair M65 RGB Elite FPS Gaming
MONITOR: Samsung 34″ 1440p WQHD Ultrawide Gaming

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