Card list (MSU1)

Card list (MSU1)

Generally every card should work with sd2snes.
However some cards, while sporting fast transfer rates, have long access times (jumping between two non-consecutive sectors on the card).
This can impact MSU1 performance when using the MSU1 audio and data features simultaneously only, as two files have to be streamed at the same time.

Generally peak access times (T_max in the table below) up to 1 ms are acceptable for MSU1. I’ve come across cards with maximum access times as long as 9 ms. If the peak access time is slightly above 1 ms, low average access times (T_avg in the table below) can make up for it sometimes.

Note that cards with long access times can still be suitable for low-bandwidth and smaller transfers per frame. Also, using only the data or the audio extension at a given time increases tolerance.

As a rule of thumb the acceptable peak access time is 10 ms for audio only, 2 ms for data only.

On this page cards tested with sd2snes will be listed, including their measured peak+average access time, brand, maker/product code, revision, and serial number, and if MSU1 audio+video playback at full bandwidth is possible.

BrandNameSize[GB]ProductMfd.MSU1 AV okMakerRev.s/nT_avgT_max
SanDiskExtreme Class 10 30MB/s8SD08Gno0x03 / "SD" / SanDisk8.00x2003f5850.5 ms8.8 ms
TranscendSDHC Class 1032SDrare glitches0x74 / "JE" / JiaElec1.00x0000073e0.7 ms1.1 ms
SanDiskExtreme Class 10 30MB/s8SD08Gno0x03 / "SD" / SanDisk8.00xc042eae70.6 ms9.5 ms
PLATINUMSDXC64SMIyes (reformat w/ FAT32)0x03 / "SD" / SanDisk1.00x490109870.5 ms0.7 ms
TranscendSDHC Class 10800000some glitches0x1b / "SM" / Samsung1.00x01086ccb0.9 ms1.2 ms
SanDiskSD1SD01Gyes0x03 / "SD" / SanDisk8.00x1008940c0.4 ms0.7 ms
extrememorySD2FLASHno0x3e / "H-" / ?0.00x0090006d0.4 ms7.4 ms
SanDiskmicroSD16SU16Gyes0x03 / "SD" / SanDisk8.00x1100f68a0.6 ms1.2 ms
NoNamemicroSD200000yes0x1b / "SM" / Samsung1.00xb19d34c70.2 ms1.6 ms
NoNamemicroSD0.5N/Ayes0x00 / " " / ?1.00x1c6f3b3a0.1 ms0.2 ms
ToshibaSD2SD02Gyes0x02 / "TM" / Toshiba6.00xaab68a2d0.3 ms0.5 ms
PanasonicSD2SN02Grare glitches0x01 / "PA" / Panasonic7.40x618b75690.7 ms1.0 ms
MEDIONSD2SMI2009/12yes0x4e / "BW" / BiWin?1.00x0000082a0.2 ms0.5 ms
SanDiskminiSD1SD01G2007/10yes0x03 / "SD" / SanDisk8.00x113108d90.4 ms0.6 ms
SanDiskWii SD4SD04G2010/01yes0x03 / "SD" / SanDisk8.00x206c37af0.4 ms0.6 ms
SanDiskUltra Class 44SD04Gno0x03 / "SD" / SanDisk8.00x2185a5960.5 ms3.8 ms
SanDiskmicroSD2SU02Gyes0x03 / "SD" / SanDisk8.00x2015e4fe0.4 ms0.8 ms
NoNamemicroSD2SD02Gyes0x02 / "TM" / Toshiba3.80xa3badb4c0.4 ms0.7 ms
TranscendSDHC Class 104SDCyes0x1e / "AB" / ?1.00x00a0087a0.4 ms0.8 ms
SanDiskExtreme III SDHC4SD04Gyes0x03 / "SD" / SanDisk8.00x007085ad0.4 ms0.7 ms
PLATINUMSDHC Class 1016SMIno0x1a / "PQ" / Power Quotient?0.00x000010070.4 ms7.8 ms
SamsungMB-SS8GA SDHC Class 6800000some glitches0x1b / "SM" / Samsung1.00x05a129ff0.8 ms1.4 ms
PanasonicSDHC Class 44SP04G2009/10yes0x01 / "PA" / Panasonic7.40x24a6a00e0.4 ms0.6 ms
PLATINUMSD4SMI2007/01yes0x6f / "" / ?1.00x4232063f0.4 ms0.9 ms
PLATINUMSDHC Class 1032NCard2011/12yes0x73 / ”BG” / Bongiovi Intl.?1.00x000002b20.2 ms0.9 ms
SanDiskSD5120.5SD5122005/12yes0x03 / "SD" / SanDisk8.00x20c463930.5 ms0.9 ms
ULTRONSecure Digital HighSpeed2SD02G2007/11yes0x02 / "TM" / Toshiba2.80xa06e4a1d0.1 ms0.2 ms
SanDiskUltra SDHC 30 MB/s Class 68SU08G2012/04yes0x03 / "SD" / SanDisk8.00x01409cf00.4 ms0.8 ms
PatriotLX Series 16 GB Class 10 SDHC Flash Memory Card PSF16GSDHC10 (Black)16SD16G2012/04no0x27 / "PH" / Phison3.00xb00c54bd1.8 ms3.0 ms
SanDisk32 GB Class 4 SD SDHC SDSDB-032G-B3532SD32G2012/05yes0x03 / "SD" / SanDisk8.00.8 ms1.4 ms
SamsungMB-MSAGA/EU Essential Class 6 microSDHC 16GB16000002012/01yes0x1b / "SM" / Samsung1.00x0a7a75510.7 ms1.1 ms
SamsungMicro SD 2GB MB-MS2GA/EU2000002012/09yes0x1b / "SM" / Samsung1.00x0350acea0.2 ms0.4 ms
KingMaxSDHC Class 616SD16G2012/10yes0x13 / "HG" / ?0.00x011000160.3 ms0.9 ms
SanDiskmicroSDHC Class 432SU32G2013/08yes0x03 / "SD" / SanDisk8.00x20b7c6410.6 ms1.1 ms
KingstonSDC4/8GB8SA08G2013/09rare glitches0x02 / "TM" / Toshiba1.10x1f9419230.9 ms1.4 ms
ToshibaSDHC UHS-I CARD8SE08G2014/06yes0x02 / "TM" / Toshiba2.20xc5c48a6f0.6 ms0.7 ms
TranscendTS32GSDHC10U1E32SDU1 2015/09yes0x74 / "J'" / JiaElec2.00x4bf1245d0.4ms0.8ms
SanDiskBlue SD Memory Card32SS32G2015/12yes0x03 / "SD" / SanDisk8.00xf0351fcd0.4ms0.8ms
SanDiskUltra microSDXC UHS-I Card200SL2002016/03yes (FAT32 format using h2format.exe)0x03 / "SD" / SanDisk8.00xfb282a190.5ms0.9ms
SanDiskUltra SDHC8SL08G2015/07yes0x03 / "SD" / SanDisk8.00x35fe77aa0.2ms0.5ms
ToshibaSD-K32G32SA32G2013/11some glitches0x02 / "TM" / Toshiba1.10x433764671.4ms2.2ms
SamsungEVO SDHC Class 1032000002015/09yes0x1b / "SM" / Samsung1.00xb17704360.4ms1.0ms
MixzaTohaoll MicroSDHC UHS-I 2016 Ocean Series32000002016/12some glitches (Road Blaster)0x19 / "DY" / ?15.150x00005de20.6ms1.7ms
TranscendMicro SDHC Class 1016USD2012/08yes0x74 / "JE" / JiaElec1.00xdf2019320.3ms0.7ms
SanDiskSDHC Class 44SU04G2012/03yes0x03 / "SD" / SanDisk8.00x2104b90b0.5ms1.2ms
SanDiskUltra microSDXC64SL64G2015/05yes0x03 / "SD" / SanDisk8.00x6abf79d90.5ms1.2-4.1ms
SanDiskExtreme PLUS SDHC UHS-I32SE32G2016/10yes0x03 / "SD" / SanDisk8.00x69ae45c70.1ms0.8ms
QUMOSDHC32ncard2011/04yes0x73 / "BG" / Bongiovi Intl.?0.00x60000a010.6ms1.2ms
KingstonMicroSDHC Class 10 UHS-I64SD64G2016/04yes0x41 / "42" / Kingston3.00x0026c1170.5ms0.7ms
TranscendSDHC Class 10?SDC2017/02yes0x74 / "JE" / JiaElec2.00x4200b9d50.4ms1.0ms
KingstonSDHC Class 1032SD32G2015/01yes0x41 / "42" / Kingston3.00x0270066c0.8ms1.3ms
TDKSDHC Class 1032SD32G2013/02yes0x27 / "PH" / Phison3.00x70c191e50.6ms0.8ms
SanDiskUltra microSDXC UHS-I128??yes???0.5ms0.5ms
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Name: SDHC Class 10
Size: 32GB
Maker: 0x73/”BG”/?
Product: “NCard”
Rev: 1.0
Mfd: 2011/12
s/n: 000002b2
T_avg: 0.243ms
T_max: 0.885ms
MSU1 ok: yes

Name: microSDHC Class 4
Size: 32GB
Maker: 0x03, “SD”
Product: “SU32G”
Rev: 8.0
S/n: 20b7c641
Mfd: 2013/08
T_avg: 0.568ms
T_max: 1.050ms
MSU1 ok: yes

I’ve tested two cards yet…

Brand: SanDisk
Name: SD512
Size: 512MB
Maker: 0x03/”SD”
Product: “SD512”
Rev: 8.0
Mfd: 2005/12
s/n: 20c46393
T_avg: 0.452ms
T_max: 0.863ms
MSU1 ok: yes


Name: Secure Digital HighSpeed
Size: 2GB
Maker: 0x02/”TM”
Product: “SD02G”
Rev: 2.8
Mfd: 2007/11
s/n: a06e4a1d
T_avg: 0.142ms
T_max: 0.163ms
MSU1 ok: yes

brand:Patriot LX
Series 16 GB Class 10 SDHC Flash Memory Card PSF16GSDHC10 (Black)
size 16GB
maker: 0.27/ “PH”
product: SD16G
rev: 3.0
sn: b00c54bd
mfd 2012/04
sd acc. tome 1.771/2.996 ms avg max
MSU1 ok: yes

Could you tell me if Sandisk SDSDX-064G-X46 works fine with it ?

brand: Sandisk
name: Series 32 GB Class 4 SD SDHC Modellnumber: SDSDB-032G-B35
size 32 GB
maker: 0x03. -SD-
product: -SD32G-
rev: 8.0
mfd 2012/05
sd acc. tome 0.822/1.417 ms avg max

brand: Samsung
name: MB-MSAGA/EU Essential Class 6 microSDHC 16GB
size: 16gb
maker: 0x1b, “SM”
product: “00000”, Rev. 1.0
sd serial no.: 0a7a7551, mfd. 2012/01
sd scc. time: 0.678 / 1.062 ms avg/max
msu1 ok: Yes

brand: Samsung
name: Samsung Micro SD 2GB MB-MS2GA/EU
size: 2 GB
maker: 0x1b, “SM”
product: “00000” Rev 1.0
serial : 0350acea, mfd 2012/09
SD acc Time 0.188 / 0.350ms avg/max
Price : 3,5 € 🙂

Brand: KingMax
Name: SDHC Class 6
Size: 16GB
Maker: 0×13/”HG”/?
Product: “SD16G”
Rev: 0.0
Mfd: 2012/10
s/n: 01100016
T_avg: 0.348ms
T_max: 0.948ms
MSU1 ok: yes

A “Short” SD card adapter for use with MicroSD cards.

This might get flagged as SPAM, but it could be useful.

Is it possible, that a card works in ED64 but not in sd2snes?
It’s a 64 GB ADATA SDHC Class 10 – always telling me, menu.bin was not found. But I just copied everything from the 4 GB Card I used before.

So what 32GB SDHC card shall i buy, any recommendations please?

Thanks! 🙂

Best regards

Brand: Kingston
Name: SDC4/8GB
Size: 8GB
Maker: 0x02/”TM”
Product: “SA08G”
Rev: 1.1
Mfd: 2013/09
s/n: 1f941923
T_avg: 0.892ms
T_max: 1.363ms
MSU1 ok: rare glitches

Size: 8GB
Maker: 0x02, “TM”
Product: “SE08G”
Rev: 2.2
Mfd: 2014/06
s/n: c5c48a6f
T_avg: 0.618 ms
T_max: 0.740 ms
MSU1 ok: yes

Extra: made in Japan, sku# SD-K008GR7AR30 on box.

Brand: Transcend
Name: Transcend 32GB SDHC Class 10 UHS-1 Flash Memory Card Up to 90MB/s (TS32GSDHC10U1E)
Size: 32GB
Maker: 0x74, “J'”
Product: “SDU1 ”
Rev: 2.0
Mfd: 2015/09
s/n: 4bf1245d
T_avg: 0.394ms
T_max: 0.817ms
MSU1 ok: yes

Brand: Transcend
Name: Transcend 32GB SDHC Class 10 UHS-1 Flash Memory Card Up to 90MB/s (TS32GSDHC10U1E)
Size: 32GB
Maker: 0x74, “J'”
Product: “SDU1 ”
Rev: 2.0
Mfd: 2015/09
s/n: 4bf1245d
T_avg: 0.394ms
T_max: 0.817ms
MSU1 ok: yes

Brand: Toshiba
SD Maker/OEM: 0x02, “TM”
SD Product Name: “SE04G”, rev 0.1
SD Serial No. bf0ce536, mfd 2013/06
SD acc time: 0.486/0.643 ms avg/max
MSU1 OK: Yes

Brand: Toshiba
Size: 4GB
SD Maker/OEM: 0x02, “TM”
SD Product Name: “SE04G”, Rev 0.1
SD Serial No.: bf0ce536, MFD. 2013/06
SD acc. time: 0.486/0.643 ms avg/max
MSU1 OK: yes

Brand: SanDisk
Size: 32GB
SD Maker/OEM: 0x03, “SD”
SD Product Name: “SU32G”, Rev 8.0
SD Serial No.: 00ad27fd, Mfd. 2013/11
SD acc. time: 0.698/1.353 ms avg/max
MSU1 OK: yes

Pictures of previous Toshiba card:
Pictures of this SanDisk Card:

oddly enough, the first time testing this one I got 0.699/3.290, but after the second test it seemed to normalize at ~1.4 ms.

SanDisk Blue SD Memory Card – 32GB.
Product code:343/4848

Brand: SanDisk
Size: 32GB
SD Maker/OEM: 0x03, “SD”
SD Product Name: “SS32G”, Rev. 8.0
SD Serial No: f0351fcd, mfd. 2015/12
SD acc. time: 0.352 / 0.811 ms avg/max
MSU1 OK: yes

Brand: SanDisk Ultra SDHC
Size: 8GB
Class: 10
SD Maker/OEM: 0x03, “SD”
SD Product Name: “SL08G”, Rev. 8.0
SD Serial No: 35fe77aa, mfd. 2015/07
SD acc. time: 0.212 / 0.478 ms avg/max
MSU1 OK: yes, Zelda 3 video intro and Rock ‘n’ Roll Racing sometimes looses sound when reset

32 GB Samsung EVO SDHC Class 10

SD Maker /OEM: 0x1b, “SM”
SD Product Name: “00000”, Rev. 1.0
SD Serial No.: b1770436, Mfd. 2015/09
SD acc. time: 0.418 / 1.039 ms avg/max

MSU1 performance is flawless


I have Super Super Famicom console (NTSC-J region), but when I try out the SD2SNES it gave me glitches in menu

This is my SD card see the link:【Amazon-co-jp限定】Transcend-SDXCカード-Class10-最大転送速度90MB-TS64GSDXC10U1E/dp/B00H8JHPO0/ref=sr_1_1?s=computers&ie=UTF8&qid=1471504671&sr=1-1&keywords=sd+card+64gb

Toshiba SD-K32G 32GB, SDHC Class 4
SD Maker/OEM: 0x02, “TM”
SD Product Name: “SA32G”, Rev. 1.1
SD Serial No: 43376467, Mfd. 2013/11
SD acc. time: 1.449 / 2.151
MSU1 video performs so-so with some glitches, Super Road Blaster shows 0.1 sec hickups between track changes.

SanDisk SDHC Card, Class 4 SD Maker/OEM: 0x03, “SD” SD Product Name: “SU04G”, Rev. 8.0 SD Serial No: 2104b90b, Mfd. 2012/03 SD acc. time: 0.488 / 1.153 MSU1 ok! Transcend 16GB Micro SDHC Class 10 SD Maker/OEM: 0x74, “JE” SD Product Name: “USD ”, Rev. 1.0 SD Serial No: df201932, Mfd. 2012/08 SD acc. time: 0.330 / 0.737 MSU1 ok! Tohaoll Mixza 32GB, MicroSDHC UHS-I 2016 Ocean Series SD Maker/OEM: 0x19, “DY” SD Product Name: “00000”, Rev. 15.15 SD Serial No: 00005de2, Mfd. 2016/02 SD acc. time: 0.560 / 1.677 MSU1: Quite frequent blinking in Super Road Blaster, other games… Read more »

Hi, I have this: Lexar Scheda Professional 633x 16GB SDHC UHS-I – LSD16GCB1EU633
But games msu1 I hear skreching sound 🙁

fw 0.1.7d
sd maker/om 0x28, BE
sd product 5BCG0 rev 0.9
sd serial 44741625 mfd 2016/08
sd acc. time 0.402/ 128.503 ms avg/max
cpu rev: 2 ppu1 rev: 1 ppu2 rev:3

this is my sd2snes sys info, where see rev? thanks ikari

sorry i open now sd2snes for read rev, is “H”

Wow, you are great!!! solve my problem 🙂
thanks bro and great work with this fw 😉

The fix suggested here works on my Samsung EVO+ 32GB micro SD as well. Before I had screeching sound. Changed the Firmware file and that fixed it.

“OK thanks! Rev.H is good. Latest firmware has a little MSU audio bug because I wanted to fix something for Rev.G.
Please try this file (replace it in your sd2snes folder), it should fix the MSU1 audio distortion. (Just a test, not for the Cx4 games yet)”

Brand: SanDisk Ultra microSDXC
Size: 64GB (Reformated to FAT32)
Class: 10
SD Maker/OEM: 0x03, “SD”
SD Product Name: “SL64G”, Rev. 8.0
SD Serial No: 6abf79d9, mfd. 2015/05
SD acc. time: 0.508 / 1.240 ms avg/max (sometimes 0.512 / 4.102 ms avg/max after turning the console on)
MSU1 OK: yes, tested with Super Road Blaster

Sandisk Extreme 80mb/s sdxc uhs-1 class 10 64GB (Reformated to FAT32)
MSU-1: No, skreching sound. Tested DKC2 and Super Metroid.

Name: Extreme PLUS SHDC UHS-I Card
Size: 32GB
Maker: 0x03, “SD”
Product: “SE32G”
Rev: 8.0
S/n: 69ae45c7
Mfd: 2016/10
T_avg: 0.120ms
T_max: 0.805ms

Brand: QUMO
Name: SDHC Secure Digital High Capacity
Size: 32GB
Maker: 0x73, “BG”
Product: “ncard”
Rev: 0.0
S/n: 60000a01
Mfd: 2011/04
T_avg: 0.616
T_max: 1.174ms

Works perfect with sd2snes and msu-1, i buy It years ago a seller in eBay u.k. Today in Amazon appears a SD Card Brand mame called qumox. Maybe is the same company ir not the colours are equal in my QUMO card and qumox Card.

I forget i try It with roadblaster and is a class 10 card.

Kingston microsd 64gb class 10 uhs-1 (black made un Taiwán).

Brand: Kingston
Name: pakage is lost.
Size: 64gb
Maker: 0x41, “42”
Product: “SD64GB”
Rev: 3.0
S/n: 0026c117
Mfd: 2016/04
T_avg: 0.453
T_max: 0.741ms ( is more low in Exfat around 6.6).

Compatibility with msu-1 to be determined. Is the normal microsd 64gb sell Kingston.

Labeled sdc10g2/64gb

Transcend 16GB SDHC Class 10

SD Maker /OEM: 0x74, “J`”
SD Product Name: “SDC ”
Rev. 2.0
SD Serial No.: 4200b9d5
Mfd. 2017/02
SD acc. time: 0.389/0.963 ms avg/max

Seems to work fine with MSU-1.

I also had a Kingston 16GB Class 10 which also worked for MSU-1 but it corrupted completely the next day already so I have no information on it and can’t honestly recommend either.

Kignston 32GB SDHC Class10
SD Maker 0x41, “42”
SD Product name “SD32G” Rev 3.0
SD Serial 0270066C MFD 2015/01
SD acc time 0,843/1.316 ms

TDK 32GB SDHC Class 10

SD Maker 0x27 “PH”
SD Product name “SD32G” Rev 3.0
SD Serial 70c191e5 MFD 2013/02
SD acc time 0,569/0.772 ms

Both working

As the MSU1 library seems to keep on growing lately, this one should be a darn good find!
Name: Ultra microSDXC UHS-1
Size: 128GB
T_avg: 0.45ms
T_max: 0.51ms
MSU1 ok: yes

Been studying some specs lately (SD Association, It seems that the new label called “Application Performance Class” refers to minimum random read/write IOPS, which is exactly what we are looking for (well at least it’s a good rule of thumb). A1: minimum 1500 IOPS read, 500 IOPS write A2: minimum 4000 IOPS read, 2000 IOPS write The above mentioned SANDISK Ultra microSDXC UHS1 is an A1 class SD card and it looks like it passed the test. So try to look for these labels as they suggest minimum random access performance. And btw: Thank you very much ikari for… Read more »

Alrighty then, i tested SANDISK Ultra microSDXC UHS1 A1 with 16, 32, 64 GB’s. Here’s a short list.
avg. access times (ms):
16GB -> 0.184
32GB -> 0.192
64GB -> 0.188
max. access times (ms):
16GB -> 0.734
32GB -> 0.821
64GB -> 0.788

Wow this might be what we really need to look at. I’m trying to find a 128 gb or larger with A2 or A1 and UHS3, class 10 card although not sure if the UHS helps in this case. Anymore info on these findings would be very helpful.

Thanks for the posts guys, you helped me pick out a card. How did you guys go about testing the avg. access times and max. access times? Is there a test I can load onto the SD2SNES or is it done with the SD2SNES diagnostic firmware?

Here is a page that explains what to use to obtain benchmark information:

Thanks guys

does anybody know if “kingston micro SDHC I class 10 32GB” or “Adata micro SD 32GB” (HC or XC) works fine with SD2SNES? i bought a “Kingston micro SD XC class 10 64GB” yesterday and just showed me the error “sd2snes/menu.bin file not found”

Also, using only the data or the audio extension at a given time increases tolerance.

Brand: SanDisk
Name: Extreme Pro microSDXC
Size: 64GB
Maker: 0x03, “SD”
Product: “SR64G”
Rev: 8.0
Mfd: 2020/12
s/n: 5768dec4
T_avg: 0.199ms
T_max: 0.826-1.021ms
MSU1 ok: yes

Brand: Verbatim
Name: Tablet microSDHC
Size: 32GB
Maker: 0x27, “PH”
Product: “SD32G”
Rev: 6.0
Mfd: 2021/01
s/n: 7cf347ee
T-avg: 0.05ms
T_max: 0.244ms
MSU1 ok: yes

[…] auf SD-Karte, in die Cartridge und schon könnt Ihr Homebrews oder Übersetzungen spielen) von byuu besitzt einen Extra-Chip, mit dem man vorhandene Spiele mit CD-Audio bestücken kann. Solche […]

Hi everyone, hope someone can help me, I bought a Chinese SD2SNES cartridge, it does not emulate the background music, only the sounds, I have already tried various things but nothing has worked for me. I appreciate your help.

I have two SD Cards (both 32GB) that perform decently. Test performed on the 1.11.0b1 firmware The first is this Sandisk and the second is this Kingston. One thing I have to mention for people who still do these tests, it’s possible that upon first bootup, by the time everything initializes, you could get a first-reading where the max access time is ~25ms (which is obviously ridiculous), this delay until the card is fully ready for testing seems to scale with how filled the card is, and how many small files there seems to be. So don’t be think your… Read more »

Brand: SanDisk
Size: 32GB
SD Maker/OEM: 0x03, “SD”
SD Product Name: “SS32G”, Rev. 8.0
SD Serial No: f0351fcd, mfd. 2015/12
SD acc. time: 0.352 / 0.811 ms avg/max
MSU1 OK: yes

Size: 128 GB
SD maker/OEM: 0x1b, “SM”
SD Product Name: “ED2S5”, Rev. 3.0
SD Serial no.: 8d90671b, Mfd. 2022/08
SD acc. time: 0.106/0.376 ms avg/max

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