SDXC Card
User Benchmarks

Model	Type	Score	Seq. Read MB	Seq. Write MB	Read 4k64QD	Write 4k64QD	Read Access msek.	Write Access msek.
SDXC Card	64	289	153	73	8.79	0.99	0.52	16.34
SDXC Card	64	229	92	85	5.57	2.37	0.52	1.68
SDXC Card	126	213	94	69	10.49	2.47	0.39	1.52
SDXC Card	128	212	91	81	11.25	3.53	0.40	1.12
SDXC Card	128	210	87	80	6.55	2.96	0.64	1.36
SDXC Card	128	209	86	80	9.65	3.08	0.47	1.36
SDXC Card	256	208	86	81	8.72	2.68	0.50	1.53
SDXC Card	256	208	86	81	8.72	2.68	0.50	1.53
SDXC Card	256	207	87	79	9.39	2.63	0.48	1.48
SDXC Card	512	203	87	77	5.46	4.15	0.50	1.07
SDXC Card	64	201	86	66	7.69	2.91	0.43	1.39
SDXC Card	64	200	86	66	7.98	3.09	0.43	1.29
SDXC Card	64	199	81	70	7.19	5.45	0.52	0.78
SDXC Card	537	199	88	62	12.23	3.38	0.37	1.23
SDXC Card	128	198	89	61	8.20	2.72	0.44	1.46
SDXC Card	125	197	81	69	10.98	3.17	0.38	1.72
SDXC Card	1024	196	85	74	6.20	0.47	0.52	1.32
SDXC Card	506	191	92	35	14.17	6.07	0.35	0.72
SDXC Card	128	190	85	78	8.22	1.84	0.52	2.24
SDXC Card	128	189	89	60	6.00	1.61	0.51	2.48
SDXC Card	256	189	87	70	6.79	1.88	0.51	1.84
SDXC Card	64	188	87	64	7.31	2.74	0.66	1.49
SDXC Card	64	181	87	65	6.49	2.66	0.69	1.51
SDXC Card	63	180	80	61	3.90	0.59	1.21	7.09
SDXC Card	63	180	80	61	3.90	0.59	1.21	7.09
SDXC Card	197	179	90	47	5.12	2.22	0.74	1.81
SDXC Card	64	178	80	57	8.86	2.17	0.54	1.93
SDXC Card	64	178	80	57	8.86	2.17	0.54	1.93
SDXC Card	64	178	80	57	8.86	2.17	0.54	1.93
SDXC Card	64	177	83	57	5.96	2.87	0.78	1.62
SDXC Card	126	177	85	47	9.82	3.80	0.38	1.20
SDXC Card	128	176	72	67	6.83	1.92	0.51	2.33
SDXC Card	63	174	75	52	6.78	3.18	0.63	1.45
SDXC Card	64	173	83	54	4.35	0.78	1.03	5.23
SDXC Card	128	169	78	53	7.00	2.76	0.49	1.55
SDXC Card	64	166	91	29	7.35	2.90	0.48	1.42
SDXC Card	64	162	86	38	5.63	0.49	0.67	4.88
SDXC Card	537	161	85	47	7.08	1.13	0.58	3.68
SDXC Card	64	158	77	36	11.69	5.05	0.34	0.82
SDXC Card	128	157	89	33	6.05	0.00
SDXC Card	64	156	81	39	3.64	0.85	1.32	6.49
SDXC Card	64	150	83	41	5.76	1.12	0.71	26.01
SDXC Card	128	149	86	32	4.88	1.70	0.83	2.79
SDXC Card	126	148	80	30	0.00	0.00
SDXC Card	256	148	88	22	6.40	0.54	0.52	2.26
SDXC Card	128	148	82	33	5.10	0.97	0.55	3.84
SDXC Card	64	148	90	18	10.95	3.24	0.42	1.16
SDXC Card	64	148	90	21	7.92	2.28	0.49	1.62
SDXC Card	64	145	90	15	10.55	3.17	0.42	1.13
SDXC Card	64	137	88	17	8.01	0.73	0.52	2.13
SDXC Card	128	135	82	23	7.23	0.02	0.68	294.08
SDXC Card	64	132	77	21	2.36	0.74	0.68	6.97
SDXC Card	64	130	67	34	5.42	0.76	0.50	4.59
SDXC Card	128	127	88	7	9.47	0.09	0.51	163.07
SDXC Card	256	121	78	11	9.52	2.64	0.49	1.59
SDXC Card	64	120	46	43	5.02	2.52	0.73	1.64
SDXC Card	537	111	85	8	6.07	0.66	0.57	6.05
SDXC Card	62	104	75	10	4.86	0.49	0.87	9.03
SDXC Card	64	102	51	29	5.81	0.69	0.59	4.36
SDXC Card	64	102	43	32	7.15	1.92	0.57	2.14
SDXC Card	128	101	42	34	5.16	1.94	0.73	2.35
SDXC Card	126	101	46	27	7.51	3.58	0.63	1.11
SDXC Card	126	98	45	24	7.73	3.88	0.61	1.15
SDXC Card	129	96	43	32	3.68	0.59	1.03	6.48
SDXC Card	64	95	38	34	3.76	0.94	0.96	4.36
SDXC Card	63	95	64	10	6.14	0.08	0.66	49.92
SDXC Card	129	94	45	27	4.29	0.62	0.82	6.21
SDXC Card	64	85	33	28	4.55	2.71	0.79	1.54
SDXC Card	128	85	37	25	4.24	2.03	0.83	2.14
SDXC Card	128	85	58	12	3.77	1.70	1.20	3.58
SDXC Card	64	84	43	23	3.67	0.58	0.95	5.55
SDXC Card	128	82	42	21	3.63	0.55	1.00	8.50
SDXC Card	128	82	44	21	3.57	1.34	1.17	2.70
SDXC Card	64	81	44	16	4.62	0.20	0.90	21.47
SDXC Card	64	81	40	22	7.17	0.51	0.59	6.36
SDXC Card	64	81	44	16	5.41	1.79	0.63	4.92
SDXC Card	64	80	44	17	5.00	1.70	0.66	3.18
SDXC Card	64	80	44	17	5.18	0.67	0.66	4.22
SDXC Card	64	78	45	14	4.36	1.49	1.06	2.31
SDXC Card	128	78	28	30	5.44	0.90	0.66	4.33
SDXC Card	64	76	44	14	5.02	0.72	0.67	2.22
SDXC Card	64	76	44	11	5.09	1.01	0.67	4.50
SDXC Card	64	75	33	29	3.19	0.26	1.04	4.56
SDXC Card	63	75	38	18	4.14	0.92	1.03	4.42
SDXC Card	64	74	37	21	2.88	0.37	1.26	11.51
SDXC Card	64	74	37	21	2.88	0.37	1.26	11.51
SDXC Card	128	74	26	29	5.79	0.87	0.74	4.45
SDXC Card	64	74	45	11	5.27	0.36	0.64	5.32
SDXC Card	64	73	44	12	4.86	1.80	0.68	2.07
SDXC Card	64	73	40	14	7.75	1.13	0.56	4.02
SDXC Card	129	73	36	21	2.14	0.29	1.70	10.55
SDXC Card	256	73	26	29	2.33	0.87	1.43	4.78
SDXC Card	247	69	30	21	5.79	0.95	0.76	4.43
SDXC Card	125	68	26	27	2.69	0.85	1.85	5.14
SDXC Card	130	67	30	20	3.30	0.60	1.04	6.85
SDXC Card	126	65	26	20	4.20	1.97	0.96	2.34
SDXC Card	125	65	24	26	2.25	0.62	2.44	7.79
SDXC Card	256	65	24	24	2.51	0.82	0.84	4.96
SDXC Card	128	64	22	22	6.17	2.76	0.59	1.50
SDXC Card	537	64	22	21	7.15	3.42	0.56	1.17
SDXC Card	64	63	27	20	2.57	0.66	1.66	6.69
SDXC Card	129	63	35	14	3.56	0.08	1.02	50.32
SDXC Card	126	61	22	21	5.01	2.57	0.84	1.57
SDXC Card	126	61	22	21	5.01	2.57	0.84	1.57
SDXC Card	126	61	22	21	5.01	2.57	0.84	1.57
SDXC Card	197	59	32	7	4.91	2.36	0.83	1.93
SDXC Card	64	58	22	19	4.35	1.93	0.83	2.31
SDXC Card	125	58	36	8	3.23	0.27	1.26	16.35
SDXC Card	62	58	30	16	3.49	0.27	1.11	4.35
SDXC Card	197	57	25	15	2.76	0.83	1.44	5.22
SDXC Card	128	56	21	20	2.90	0.91	1.59	4.63
SDXC Card	2147	54	16	19	3.77	5.28	1.01	1.01
SDXC Card	64	54	22	21	3.11	1.32	1.42	3.24
SDXC Card	64	53	22	18	4.96	0.93	0.67	4.42
SDXC Card	64	53	22	17	2.54	0.63	1.52	6.59
SDXC Card	512	52	20	18	2.78	0.47	1.38	9.04
SDXC Card	128	51	22	17	2.15	0.64	1.82	6.44
SDXC Card	64	50	18	16	4.43	2.46	0.97	1.86
SDXC Card	63	50	27	11	4.20	0.68	1.06	6.86
SDXC Card	63	49	29	8	2.68	0.26	1.52	18.32
SDXC Card	63	48	32	2	3.60	0.49	1.18	3.72
SDXC Card	134	44	18	17	6.41	0.00	0.67	1745.21
SDXC Card	134	44	20	14	5.10	0.00	0.84	1187.94
SDXC Card	268	44	22	9	8.23	0.01	0.52	666.02
SDXC Card	67	44	22	13	2.63	0.00	1.59	1390.36
SDXC Card	128	43	22	11	2.75	1.44	1.70	2.76
SDXC Card	268	42	17	17	5.41	0.00	0.79	1615.78
SDXC Card	64	42	22	7	4.90	0.88	0.70	4.50
SDXC Card	1073	42	18	14	5.28	0.01	0.79	467.53
SDXC Card	511	42	16	17	5.30	0.00
SDXC Card	268	40	2	22	1.77	9.37	2.41	0.47
SDXC Card	537	40	19	11	5.61	0.00
SDXC Card	134	39	16	14	5.78	0.00
SDXC Card	1073	38	15	14	1.02	0.94	3.12	4.52
SDXC Card	537	38	17	12	5.86	0.00	0.73	2432.30
SDXC Card	256	38	22	4	6.52	0.47	0.62	4.32
SDXC Card	268	38	18	12	4.73	0.00
SDXC Card	537	38	14	16	4.33	0.00
SDXC Card	63	38	26	11	0.00	0.00
SDXC Card	537	37	14	12	1.97	7.27	2.10	0.63
SDXC Card	537	37	14	12	1.94	7.29	2.27	0.60
SDXC Card	134	36	17	10	5.30	0.00
SDXC Card	134	36	20	5	7.73	0.01	0.55	900.02
SDXC Card	67	36	20	6	6.03	0.01	0.75	1064.45
SDXC Card	134	36	17	8	7.96	0.00	0.53	768.05
SDXC Card	67	36	21	3	7.50	0.01	0.54	701.01
SDXC Card	64	36	22	4	3.55	0.12	1.24	195.18
SDXC Card	537	35	18	9	4.11	0.01	1.15	736.29
SDXC Card	1049	35	17	8	6.39	0.00	0.67	2474.92
SDXC Card	67	35	20	6	3.59	0.01	1.15	1175.66
SDXC Card	67	35	16	9	2.05	0.37	2.11	11.16
SDXC Card	268	34	16	10	4.11	0.00
SDXC Card	536	34	18	8	2.91	0.00
SDXC Card	537	34	17	5	7.94	0.00	0.51	1643.00
SDXC Card	134	34	19	7	2.78	0.01	1.82	1087.92
SDXC Card	1074	34	16	10	5.59	0.00
SDXC Card	134	34	21	2	7.34	0.01	0.55	319.23
SDXC Card	134	33	20	1	9.04	0.00
SDXC Card	134	33	20	1	8.06	0.01	0.66	1005.65
SDXC Card	134	33	21	1	7.50	0.00	0.54	714.71
SDXC Card	134	33	21	1	7.50	0.00
SDXC Card	537	33	21	1	6.93	0.00
SDXC Card	537	32	18	7	1.64	0.01	2.21	814.96
SDXC Card	134	32	21	1	6.84	0.00	0.56	475.12
SDXC Card	1074	32	2	21	0.03	2.82	2.29	1.70
SDXC Card	67	32	17	2	5.52	0.95	0.69	37.02
SDXC Card	67	32	20	3	2.72	0.01	1.70	460.02
SDXC Card	67	32	20	1	7.13	0.01	0.56	756.28
SDXC Card	67	32	20	1	6.63	0.00	0.67	460.12
SDXC Card	537	31	19	2	6.54	0.00	0.77	864.32
SDXC Card	537	31	18	3	7.74	0.00	0.56	416.13
SDXC Card	63	30	14	9	3.79	0.00
SDXC Card	67	30	16	5	5.57	0.00	0.75	1127.44
SDXC Card	67	30	19	2	4.64	0.00
SDXC Card	134	30	18	3	4.82	0.00
SDXC Card	134	30	17	3	7.87	0.00	0.55	1524.94
SDXC Card	134	30	13	8	5.93	0.01	0.71	799.69
SDXC Card	134	30	19	1	6.76	0.00
SDXC Card	537	30	16	4	6.16	0.00
SDXC Card	536	29	5	17	1.21	0.81	3.52	5.81
SDXC Card	134	29	20	4	3.67	0.01	1.18	597.17
SDXC Card	67	29	15	5	5.33	0.01	0.77	1368.98
SDXC Card	268	28	17	4	4.39	0.00	0.94	451.85
SDXC Card	268	28	16	4	4.62	0.00	0.91	1466.00
SDXC Card	134	28	16	2	6.56	0.00	0.62	1198.01
SDXC Card	134	28	14	2	6.43	0.01	0.72	3119.57
SDXC Card	134	28	19	1	3.98	0.00	1.22	1333.33
SDXC Card	134	27	16	4	1.64	0.08	2.97	66.99
SDXC Card	64	27	22	4	0.00	0.00
SDXC Card	67	27	18	1	4.09	0.01	1.11	660.01
SDXC Card	268	27	17	2	4.12	0.00	0.91	1050.53
SDXC Card	394	27	0	0	0.00	0.00
SDXC Card	134	26	16	4	2.05	0.17	2.39	31.16
SDXC Card	268	26	16	1	4.14	0.01	1.03	1343.83
SDXC Card	268	26	2	18	1.16	0.89	3.88	5.73
SDXC Card	268	25	16	2	2.16	0.01	2.04	487.44
SDXC Card	134	24	15	0	6.66	0.00
SDXC Card	134	23	16	4	2.22	0.01	1.83	493.08
SDXC Card	64	22	11	5	2.41	1.00	1.67	8.01
SDXC Card	1074	20	12	5	2.12	0.02	2.11	353.10
SDXC Card	256	19	12	5	0.05	0.03	97.12	169.68
SDXC Card	67	17	10	1	3.88	0.00
SDXC Card	67	12	7	2	2.28	0.01	1.83	353.07
SDXC Card	67	12	3	5	2.12	0.36	1.93	6.23
SDXC Card	134	8	3	3	1.72	0.00	2.51	1115.77
SDXC Card	134	7	3	2	1.70	0.00	2.51	2319.37
SDXC Card	268	6	3	1	2.27	0.01	1.86	1255.29
SDXC Card	128	2	0	0	0.00	0.00
SDXC Card	134	2	1	1	0.53	0.00	7.19	1782.42
SDXC Card	128	1	0	0	0.00	0.00
SDXC Card	67	1	0	0	0.00	0.00
SDXC Card	134	0	0	0	0.00	0.00
SDXC Card	134	0	0	0	0.00	0.00
SDXC Card	134	0	0	0	0.00	0.00
SDXC Card	64	0	0	0	0.00	0.00
SDXC Card	64	0	0	0	0.00	0.00
SDXC Card	64	0	0	0	0.00	0.00
SDXC Card	134	0	0	0	0.00	0.00
SDXC Card	67	0	0	0	0.00	0.00
SDXC Card	513	0	0	0	0.00	0.00
SDXC Card	63	0	0	0	0.00	0.00
SDXC Card	63	0	0	0	0.00	0.00
SDXC Card	497	0	0	0	0.00	0.00
SDXC Card	537	0	0	0	0.00	0.00
SDXC Card	125	0	0	0	0.00	0.00
SDXC Card	511	0	0	0	0.00	0.00
SDXC Card	64	0	0	0	0.00	0.00
SDXC Card	134	0	0	0	0.00	0.00
SDXC Card	537	0	0	0	0.00	0.00
SDXC Card	537	0	0	0	0.00	0.00

HPT DISK 0 0 SCSI Disk Devic // HGST HTS721010A9E6300 SCSI Disk Devic // HDT72251 6DLA380 SATA Disk Devic // TOPMORE TPCIE501 1TB SS // Crucial CT512MX100SSD1 ATA Devic // Hitachi HTS541040G9AT00 ATA Devic // ATA ST1000DM003-1ER1 SCSI Disk Devic // CSM GmbH OmniDriveUSB2-PC USB Devic

The measurement of the SDXC Card was carried out on Windows. Similar read and write speeds could certainly be achieved with the SDXC Card under Linux and MacOS. Of course, the correct hard drive driver should be installed and the correct interface for the SDXC Card should be used.

google: SDXC Card
bing: SDXC Card

SDXC (Secure Digital eXtended Capacity) card – Detailed description

General description

The SDXC (Secure Digital eXtended Capacity) card is a memory card format that belongs to the SD card family and was developed as an extension of the SDHC (Secure Digital High Capacity) cards. It was developed to meet the ever-growing data storage needs in mobile devices, cameras, computers and other devices. SDXC cards offer greater storage capacity and faster data transfer speeds compared to their predecessors.

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Technical details

1. Storage capacity:
- SDXC cards offer storage capacities from 64 GB to 2 TB. This is possible by using the exFAT file system, which supports much larger file sizes than the FAT32 system used in SDHC cards.
- This high capacity makes it ideal for storing large files such as high-resolution videos (e.g. 4K, 8K), RAW images and extensive music libraries.

2. File system:
- SDXC cards use the exFAT (Extended File Allocation Table) file system, which unlike FAT32 does not have a 4GB limit on maximum file size. This makes them particularly suitable for recording high-resolution videos, which often require a lot of storage space.

3. Speed classes:
- SDXC cards are classified by different speed classes that indicate how quickly data can be written to or read from the card:
- Class 10: Minimum write speed of 10 MB/s.
- UHS (Ultra High Speed): UHS-I (up to 104 MB/s), UHS-II (up to 312 MB/s) and UHS-III (up to 624 MB/s).
- Video Speed Class (V-Class): Designed to meet the demands of modern video productions, e.g. V30 (minimum write speed 30 MB/s) or V90 (minimum write speed 90 MB/s).
- Application Performance Class (A-Class): Designed for use in mobile devices. A1 and A2 indicate the minimum performance requirements for apps.

4. Bus interface:
- SDXC cards can work with different bus types that determine the maximum data transfer speed:
- UHS-I: Up to 104 MB/s.
- UHS-II: Up to 312 MB/s (has a second row of contacts to increase bandwidth).
- UHS-III: Up to 624 MB/s.
- SD Express: Uses PCIe and NVMe technologies, enabling transfer speeds of up to 985 MB/s.

5. Physical dimensions:
- Normal SDXC Card: 32mm x 24mm x 2.1mm.
- MicroSDXC card: 15mm x 11mm x 1mm (for smaller devices such as smartphones or action cameras).

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Functions

1. Large storage capacity:
- With a capacity of up to 2 TB, SDXC cards are ideal for professionals who need to store large amounts of data. They are particularly popular in the video and photography (4K, 8K recording) and music and gaming industries.

2. High write and read speeds:
- Thanks to the UHS (Ultra High Speed) bus interfaces and the Video Speed classes, SDXC cards are able to offer high data transfer rates, making them ideal for high-quality video recording and quickly saving photos in RAW format.

3. Durability and reliability:
- SDXC cards are often shockproof, waterproof, temperature resistant and protected against magnetic fields or X-rays. This makes them particularly robust and reliable for use in harsh environments or during outdoor activities.

4. Wide compatibility:
- They are backwards compatible with SDHC and SD card readers, however the device must be SDXC compatible to support the larger capacities. Many modern digital cameras, camcorders, smartphones, tablets and laptops support SDXC cards.

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Areas of application

1. Professional photography and videography:
- SDXC cards are particularly suitable for professional photographers and videographers who shoot in 4K or 8K and need to process large amounts of RAW images due to their high capacities and fast data transfer rates.

2. Mobile devices (smartphones and tablets):
- Many smartphones and tablets support microSDXC cards to expand internal storage. With the A1 or A2 classification, these cards are particularly suitable for running apps and storing large amounts of data on mobile devices.

3. Gaming:
- Modern gaming consoles like the Nintendo Switch use SDXC cards to store additional games and content. Here, high read speeds and large capacities are crucial to enhance the gaming experience.

4. Data backup and archiving:
- Due to their robust design and high storage capacity, SDXC cards are also suitable for long-term data storage and backups.

5. Drones and action cameras:
- SDXC cards are indispensable in drones or action cameras, which are often used in extreme environments and record high-resolution videos. The high writing speed makes it possible to record smooth and high-quality videos.

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Advantages and disadvantages

Advantages:

- Huge storage capacity: Up to 2 TB.
- Fast transfer rates: Especially with UHS-II/III or SD Express.
- High reliability: Robust and durable.
- Wide Compatibility: Supported by many devices.
- Optimized for high-resolution media: Ideal for 4K and 8K video and professional photography.

Disadvantages:

- Cost: Higher capacities and speeds mean a higher price.
- Compatibility Issues: Older devices may not support SDXC cards.
- Durability: Although SDXC cards are robust, they still have a limited number of write cycles.

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Conclusion

The SDXC card is one of the most advanced and flexible memory cards available on the market today. It offers high storage capacity and fast transfer speeds, making it indispensable for various applications, from professional photography to gaming consoles and mobile devices.

SDXC Card and the compatible operating systems

Windows Server 2025, 2022, 2019, 2016, ... or 2008 and higher

Windows 12, 11, 10 or Windows 7 and higher
Linux (various distributions)
macOS (from version 10.6)

Please note that the exact functions and areas of application may vary depending on the firmware version and configuration of SDXC Card.

The SDXC Card is a reliable disk in case of problems, failures, file loss and other errors, check the drivers of the SDXC Card regardless of whether it is under Windows 12, 11, 10, etc. or Linux and Apples macOS.

SDXC CardUser Benchmarks