Camera Memory Speed
Memory Card Comparison & Performance Tests for Digital Cameras

Lexar Professional 633x 200GB microSDXC UHS-I U1 Memory Card Review

Lexar Professional 633x 200GB UHS-I microSDXC Memory Card Front

Introduction

Lexar Professional 633x microSD cards offer UHS-I performance for action cameras, phones and tablets. The 633x card offers up to 95MB/s read speed according to Lexar. Although no write speed is not quoted, the UHS Speed Class 1 (U1) card rating means the card will support at least 10MB/s continuous write speed making it suitable for HD video recording. The largest capacity card is the 200GB (LSDMI200BBNL633R) which was tested for this review. Additional 633x microSD cards are available in 16, 32, 64 and 128GB capacities.

Lexar Professional 633x series memory cards are covered by a limited lifetime warranty. The 200GB microSDXC card tested was made in Korea.

Lexar Professional 633x 200GB UHS-I U1 micro SDXC Memory Card Back

Included microSD Memory Card Reader

Lexar Professional 633x microSD cards are sold with a microSD memory card reader. This compact reader supports UHS-I microSD cards. A separate test of the included Lexar LRWM03U-7000 microSD card reader can be found in the card reader reviews.

Lexar LRWM03U-7000 microSD UHS-I Memory Card Reader

Performance

In card reader benchmark tests the 200GB 633x microSD card measured up to 91.5 MB/s sequential read speed. This is slightly below the 95MB/s speed rating quoted by Lexar. The write speed reached the highest squential read speed of 37.4 MB/s in the included LRWM03U-7000 UHS-I microSD card reader.

With 200GB capacity, the Lexar 633x microSD card can hold tens of thousands of images, or hours of HD video. The card was tested in GoPro HERO4 Black and supported all video modes including 4K 30p recording.

Card: Lexar Professional 633x microSDXC 200GB
Benchmark: CrystalDiskMark 3.0.3 x64
Program settings: 1000 MB, 5 passes, random test data
Operating system: Windows 8.1 Pro
Motherboard: Gigabyte GA-Z77X-UD3H
Processor: Intel Core i7-3770K @ 4.40GHz
RAM: 32GB DDR3 1600

Lexar Professional 633x microSDXC 200GB
Card Reader Benchmarks
Seq.
Read
1000MB
MB/s
Seq.
Write
1000MB
MB/s
Rand.
Read
512KB
MB/s
Rand.
Write
512KB
MB/s
Rand.
Read
4KB
MB/s
QD1
Rand.
Read
4KB
IOPS
QD1
Rand.
Write
4KB
MB/s
QD1
Rand.
Write
4KB
IOPS
QD1
Rand.
Read
4KB
MB/s
QD32
Rand.
Read
4KB
IOPS
QD32
Rand.
Write
4KB
MB/s
QD32
Rand.
Write
4KB
IOPS
QD32
Lexar C1 USB-C microSD Reader91.81936.37479.1646.3294.7241153.30.38995.05.1341253.30.484118.1
Lexar LRWM03U-7000 UHS-I microSD Reader91.53137.36679.9386.3005.0001220.80.39496.25.5751361.10.534130.5
Lexar Professional Dual Slot UHS-II Card Reader91.10936.31480.7136.4685.4411328.50.424103.66.0101467.30.427104.2
Lexar LRWM05U-7000 UHS-II microSD Reader91.09336.81279.2296.2155.2061271.10.39395.85.8661432.00.603147.1
Delkin Black Rugged Card Reader90.99137.37477.7496.2574.071993.80.31577.04.6071124.70.28870.4
Lexar Professional Workflow SR2 UHS-II90.76235.42580.3516.3445.3211299.10.622151.96.0111467.60.32078.0
SanDisk Extreme Pro UHS-II SD Reader/Writer90.69236.77780.2976.4895.3571307.80.412100.55.9981464.50.40699.2
Lexar LRWM04U-7000 UHS-II Reader90.68436.88080.1106.3125.4011318.60.38293.36.0991489.00.33481.5
Delkin Travel Reader90.66836.87980.1506.2785.4841338.80.595145.26.0511477.20.433105.6
Delkin Universal Memory Card Reader90.60536.75779.7406.2575.1341253.30.40598.95.7831412.00.38594.0
Delkin Dual Slot SD UHS-II and CF Card Reader90.59836.85380.1906.2575.3601308.50.40398.55.9901462.50.40097.7
Transcend Multi-Card Reader RDF8 Black90.57436.59379.7926.3725.1891266.90.09823.95.7501403.80.37591.5
Transcend Multi-Card Reader RDF990.55836.98780.2306.3385.3901316.00.40498.66.0001464.90.528128.9
Sony S1 High Speed UHS-II Reader/Writer90.50436.87278.4216.4644.027983.10.38694.14.6251129.30.36789.6
Kingston MobileLite G4 UHS-II90.47236.96780.7136.4485.4161322.30.38193.06.0621480.00.30875.2
Transcend SD Card Reader RDF5 Black90.46536.48779.7796.2324.4591088.60.39696.64.8211177.00.456111.4
Kingston FCR-HS4 Card Reader90.43337.00480.1106.3955.3771312.80.417101.86.0321472.70.506123.6
SanDisk Extreme Pro SD UHS-II Reader/Writer90.38736.34778.4996.1124.5721116.10.38293.24.8601186.60.32178.3
Delkin Multi-Card CFast SD UHS-II microSD Reader90.01437.38680.4046.4995.2671285.90.40699.26.0771483.50.586143.1
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader89.86836.25578.9958.9705.1651260.90.508124.15.7991415.80.508124.0
SanDisk ImageMate All-In-One USB 3.089.85235.91472.9876.4193.671896.40.38694.13.854940.90.30374.1
SanDisk microSD UHS-II USB 3.0 Reader88.60734.72678.34310.8205.4041319.30.515125.85.8521428.80.512125.1

In digital camera tests the write speed measured 33.1 MB/s in the Nikon D500. Additional results from camera test results will be included in the chart below.

Lexar Professional 633x microSDXC 200GB
Tested in Camera
Write Speed
(MB/s)
Sony A933.3
Nikon D50033.1
Nikon D750032.9
Nikon D560032.7
Canon 80D32.2
Olympus E-M1 II31.2
Canon 77D29.2
Canon Rebel T7i28.6
Panasonic GH528.0
Sony A630026.6
Canon 5D Mark IV25.1

Cameras tested with this card: Canon 5D Mark IV, Canon 77D, Canon 80D, Canon Rebel T7i, Nikon D500, Nikon D7500, Nikon D5600, Olympus E-M1 II, Panasonic GH5, Sony A9, Sony A6300

The following table contains information encoded in the SD card.

Lexar Professional 633x microSDXC 200GB microSD — Internal Card Information
Serial number (PSN)3557884404
Product Name (PNM)5WCFP
Product Revision0.1
Manufacturer ID (MID)0x000028
OEM ID (OID)BE
Manufacture Date (MDT)03/2016
Total capacity200,788,672,512 bytes

Available sizes and prices

Compare prices on the Lexar Professional 633x microSD card. The lowest prices are highlighted in the table below. Prices are updated daily.

CardSize
GB
Lowest
$ / GB
Prices
AmazonB&H PhotoAdorama
Lexar Professional 633x microSD16$0.53$8.50$11.95$11.95
Lexar Professional 633x microSD32$0.27$8.50$17.95$17.95
Lexar Professional 633x microSD64$0.13$8.50$27.95$27.95
Lexar Professional 633x microSD128$0.07$8.50$54.94$54.94
Lexar Professional 633x microSD200$0.53$105.00Check priceCheck price
Lexar Professional 633x microSD256$0.78$199.00Check price$199.95