PNY Polaroid 32GB Secure Digital High-Capacity (SDHC) Flash Card Model P-SDH32U1-30-GEPOL

Pros: It serves its purpose.

Cons: The stated read speed is 50 MB/s (packaging actually reads 35MB/s) The stated Write speed is 35 MB/s CrystalDiskMark benchmarks the sequential reads and writes (the average of 9 runs) as: Write is 20.15 MB/s Read is 22.85 MB/s Granted this test is using MB = 2^20, rather than the packaging definition of 10^6. This is only a 5% difference and cannot make up for the factor of 2x in read speeds. The packaging claims the speed may be lower depending on what device it is connected to, but a factor of 2x just does not seem reasonable.

Overall Review: I was originally buying this to serve as a very portable "live" Ubuntu OS. The performance is similar to a live DVD, but I have a drive to write to and add additional packages to.

Pros: Class 10 performance, decent price.

Cons: Exact same write and read performance as my less expensive plain old Class 10 cards. Wouldn't work with my laptop's built-in SD card reader, throws a Data Cyclic Redundancy error every time I try to interact with it, and it blue screened my system just trying to close the window.

Overall Review: Was expecting higher performance than my standard Class 10 SD/MicroSD cards, but it was exactly the same when transferring single large files. Didn't test with a large quantity of small files, perhaps it might do better there. The read and write speeds were just ok at 15MB/s/19MB/s for large files. Neither of those was anywhere near the 35MB/50MB max that the card boasts. Tested on a WinXP SP3 system with 2 different USB 2.0 card readers. USB 3.0 wouldn't make a difference, that isn't the bottleneck.

Pros: Price / Capacity, good ROI in general. Here's the testing result from H2testw: Only 30530 of 30531 MByte tested. Test finished without errors. Writing speed: 20.8 MByte/s Reading speed: 40.7 MByte/s H2testw v1.4 Comparison: Adorama is now selling Sony 32G card for $17, which is cheaper, however, the writing speed is only 10M/s.

Cons: None so far, at this price level, the packaging isn't shabby.

Overall Review: Don't compare this card with Sandisk Extreme (45M/s), simply this is the SD card getting the most bang out of your buck. If you shop for the ultimate performance, you are heading the wrong direction.

Pros: Win7 shows 30.2gb usable space. PNY has always been reliable for me over the years Low price for fast card

Cons: None so far

Overall Review: I don't use benchmark software because I don't care enough to worry about exact speeds. Win7 shows me a sustained write speed of 17-18mb when I'm writing 1gb-3.5gb movie/tv show mpeg4's. Can't comment on read speeds but all my mpeg4's encoded at 3000kbps never stutter when playing on my Win7-i3-8gbRAM laptop or android 4.0 tablet. Works faster then all my other class 10 SD cards that I paid the same price for. I only watch movies/TV shows from this SD card and it works great.

Pros: Fast. Ran benchmarks, but don't remember the exact numbers, but CrystalDiskMark was showing read/write speeds in the 30+MB/s range. Have it installed in a Raspberry Pi and Raspbian boots in a matter of seconds. Cheap. Got it on sale and was cheaper than some of the class 4 cards I was looking at, and of course a lot faster So far seems reliable, been used as an OS drive for several weeks and hasn't died yet.

Cons: Probably could have gotten away with a 16GB card, but you can never have too much space.

Overall Review: Just to restate, this card DOES work with Raspberry Pis. Specifically the Model B, Revision 2.

Pros: The Polaroid P-SDH32U1 functions, but not at advertised speeds.

Cons: Crystalmark speed rating as follows: Windows Vista 64 - in MB/s Seq read; 18.44 write 16.59 512k read 18.45 write 10.86

Overall Review: Vista will not allow the potential of any SDHC card, but over 50%R and 30% reduction is not entirely Vista, it is the card. However, the above speeds are correct for the card's sixteen dollar price point.

Pros: Works on the computer.

Cons: Does not work CONSISTENTLY on the D5100! I am now getting the same warnings about the card possibly being damaged on my Nikon D5100, same as the other reviewer, so I now take back my first review!

Pros: Good size for the money, solid build

Cons: Manufacturing defect cuts I/O and makes it appear damaged to certain camcorders. D5100 from Nikon and 5D Mark II from Canon intermittently display "card damaged". I tried 2 of these, as I had thought I got a lemon the first time around.

Overall Review: Even though your camcorder says card is damaged, after you remove and re-insert it several times it will start reading it again, and your pictures are safe. When you connect this to a macbook pro it will read it fine every time. Can't vouch for any other card reader you may have.