Lexar 64GB 1066x CF Card: Superfast Powerhouse

Lexar 64GB Professional 1066x CompactFlash card

Lexar 64GB Professional 1066x CompactFlash card

Raj Lalwani is left awestruck by the speed of the Lexar 64GB Professional 1066x CompactFlash card, but realises that it’s not for everyone.

Lexar 1066x card, as compared to its predecessor, the 1000x, is exciting because of a huge improvement in its potential write speed. From a maximum of 95MB/sec in the older card, this one claims to reach a maximum of 150MB/sec. In card to computer transfers, when using a USB 3.0 reader, it consistently clocked an average of 140MB/sec, which is impressive in practice.

Of course, lab test results give only a tiny part of the story, and to me, it was more important to see how this card performed on field. I tested this card with a wide variety of cameras, from the Nikon D700 to the D810, to the D4 and the Canon EOS 5D Mark III. On the D700 and the 5D Mark III, the 1066x card does not give any perceptible advantage, as compared to using an 800x card. The older 800x and 1000x cards are, thus, fast enough, if you are using an older 12MP camera or if you are shooting bursts of up to 6fps on the Mark III.

The difference came through while shooting bursts of 5fps 36.3MP RAW+JPEG data on the D810. The buffer would consistently clear out faster with the new memory card, offering an advantage of around 2–3sec. I saw a clear advantage also on the D4, while shooting incessant 11fps RAW bursts.

So strictly speaking, this card isn’t for everyone. Get it only if you have a 7D Mark II, 1D X, D810, D4 or D4S, or of course, if you want to stay future proof for the next few years. Strangely though, its Indian MRP of Rs. 30,000 (for the 64GB version) is strangely exorbitant, considering that it is available for half that price on Indian e-commerce websites and for one-third the price, abroad.


• Product Name: Lexar 64GB Professional 1066x CompactFlash (Type 1) card
• MRP: Rs. 30,000
• UDMA: UDMA 7 compliant card
• Max Read Speed: 160MB/sec
• Max Write Speed: 155MB/sec
• Video Performance Guarantee: VPG-65
• Durability: Shockproof, staticproof, temperature extreme

Product source: Inter Foto, Mumbai, Tel: +91-22-24925151

Tags: Raj Lalwani, CF card, Lexar, November 2014, Lexar 64GB Professional 1066x CompactFlash card, Memory Card review, Fast cards