SDHC Card
User Benchmarks

Model	Type	Score	Seq. Read MB	Seq. Write MB	Read 4k64QD	Write 4k64QD	Read Access msek.	Write Access msek.
SDHC Card	32	221	90	81	7.82	2.24	0.45	2.08
SDHC Card	31	211	87	79	7.49	2.19	0.47	1.66
SDHC Card	32	206	86	80	8.86	2.28	0.58	1.78
SDHC Card	32	206	89	66	8.58	3.56	0.46	1.17
SDHC Card	16	202	81	74	5.78	2.45	0.47	1.61
SDHC Card	16	196	86	72	4.79	0.68	0.75	5.75
SDHC Card	31	190	85	70	5.11	2.96	0.61	1.38
SDHC Card	32	182	77	72	1.96	0.71	2.45	5.70
SDHC Card	32	166	88	78	0.00	0.00
SDHC Card	32	160	81	45	3.71	0.53	1.15	8.67
SDHC Card	16	156	76	55	5.16	1.31	0.76	2.63
SDHC Card	32	150	89	28	5.85	0.89	0.50	4.82
SDHC Card	31	149	84	28	4.68	0.99	1.07	4.09
SDHC Card	32	148	57	54	6.73	2.93	0.60	1.47
SDHC Card	32	147	68	54	7.25	0.90	0.57	3.72
SDHC Card	16	144	87	24	5.53	1.13	0.58	3.57
SDHC Card	32	142	83	28	5.42	0.50	0.79	4.80
SDHC Card	32	140	53	50	6.89	3.09	0.61	1.33
SDHC Card	32	139	83	26	4.72	0.59	0.65	5.27
SDHC Card	16	139	76	30	12.60	0.25	0.47	6.83
SDHC Card	32	139	78	30	5.50	0.59	0.73	6.18
SDHC Card	32	138	52	49	8.74	3.11	0.60	1.32
SDHC Card	15	137	84	28	6.73	0.70	0.63	2.62
SDHC Card	16	137	88	15	7.37	3.41	0.58	1.20
SDHC Card	16	136	83	34	4.30	0.40	1.03	3.87
SDHC Card	32	136	82	21	5.37	2.12	0.73	2.12
SDHC Card	32	133	77	31	3.88	1.36	1.13	2.93
SDHC Card	32	128	84	15	9.33	0.59	0.54	1.36
SDHC Card	16	124	80	13	4.93	1.82	1.27	3.25
SDHC Card	32	123	92	13	6.50	1.25	0.55	7.26
SDHC Card	32	123	52	29	9.76	5.21	0.54	0.87
SDHC Card	31	121	80	12	3.42	2.05	1.47	2.42
SDHC Card	31	121	76	45	0.00	0.00
SDHC Card	16	120	77	17	2.69	0.48	1.56	9.13
SDHC Card	31	119	45	39	10.08	3.98	0.44	1.00
SDHC Card	16	118	79	18	3.82	3.51	1.56	1.20
SDHC Card	32	111	79	23	6.45	1.87	0.56	2.22
SDHC Card	32	111	79	23	6.45	1.87	0.56	2.22
SDHC Card	31	108	43	38	9.99	2.25	0.47	1.25
SDHC Card	32	108	43	41	8.26	2.35	0.53	1.77
SDHC Card	32	108	58	19	9.48	4.80	0.56	0.73
SDHC Card	16	107	79	18	0.00	0.00
SDHC Card	32	105	58	21	4.60	0.69	0.65	4.02
SDHC Card	32	104	56	30	3.12	1.31	1.47	2.80
SDHC Card	32	102	44	36	6.58	0.66	0.56	5.87
SDHC Card	32	102	53	31	3.14	1.48	1.41	3.05
SDHC Card	32	100	44	23	8.16	2.39	0.56	1.68
SDHC Card	32	100	52	25	3.50	1.22	1.25	4.22
SDHC Card	32	97	50	29	3.16	1.33	1.41	2.85
SDHC Card	32	95	49	28	3.14	1.37	1.39	2.95
SDHC Card	16	94	71	6	4.14	1.00	0.89	4.54
SDHC Card	16	94	71	6	4.14	1.00	0.89	4.54
SDHC Card	32	92	43	30	5.12	1.15	0.67	2.35
SDHC Card	32	91	56	10	7.05	2.62	0.70	1.60
SDHC Card	32	91	57	17	3.14	1.44	1.38	2.82
SDHC Card	32	91	55	17	3.16	1.30	1.52	2.86
SDHC Card	32	89	57	8	5.65	0.27	0.71	2.40
SDHC Card	32	89	45	28	1.31	1.39	3.17	2.94
SDHC Card	32	88	38	29	3.81	0.76	0.98	5.29
SDHC Card	32	88	33	32	7.81	2.29	0.64	2.03
SDHC Card	32	86	43	18	6.34	2.77	0.64	1.53
SDHC Card	32	86	52	17	3.14	1.31	1.49	2.80
SDHC Card	32	85	44	22	5.11	2.14	0.65	1.84
SDHC Card	32	85	41	23	4.45	1.76	0.81	3.87
SDHC Card	17	84	38	28	5.57	1.31	0.68	5.13
SDHC Card	31	81	43	21	5.74	1.45	0.69	2.92
SDHC Card	16	81	25	38	3.90	10.60	0.90	0.34
SDHC Card	32	78	43	13	9.16	1.37	0.44	332.47
SDHC Card	16	78	45	18	5.50	0.81	0.58	57.79
SDHC Card	16	76	45	14	3.43	0.97	0.82	2.78
SDHC Card	16	76	46	8	6.93	3.22	0.59	1.61
SDHC Card	32	75	29	27	5.36	0.93	0.75	4.46
SDHC Card	31	74	32	29	4.70	0.74	0.84	68.94
SDHC Card	32	74	43	13	4.67	0.69	0.74	4.59
SDHC Card	16	74	43	12	5.26	1.75	0.73	2.38
SDHC Card	32	74	31	25	3.84	0.54	0.91	8.32
SDHC Card	8	73	32	28	4.23	0.81	0.86	5.11
SDHC Card	32	71	37	18	3.47	0.75	1.18	5.45
SDHC Card	32	71	35	17	3.02	0.68	1.35	5.77
SDHC Card	32	71	32	21	5.24	0.92	0.73	4.39
SDHC Card	15	71	45	9	4.15	0.23	1.12	7.07
SDHC Card	32	69	40	10	9.28	2.33	0.41	1.20
SDHC Card	16	69	40	12	4.62	1.43	1.19	3.44
SDHC Card	16	68	43	6	7.39	0.02	0.56	540.01
SDHC Card	16	67	41	10	4.17	1.06	0.86	3.78
SDHC Card	16	65	44	21	0.00	0.00
SDHC Card	16	64	23	22	4.76	2.09	0.78	1.85
SDHC Card	31	63	38	11	3.49	0.50	1.20	594.14
SDHC Card	32	63	31	18	3.27	2.01	1.27	2.15
SDHC Card	32	62	22	20	5.67	2.75	0.62	1.44
SDHC Card	31	62	22	21	5.33	3.52	0.80	1.35
SDHC Card	31	62	37	11	3.17	0.68
SDHC Card	31	61	32	15	5.15	0.86	0.66	4.89
SDHC Card	31	61	35	13	2.96	0.44	1.37	8.67
SDHC Card	17	60	37	12	4.95	2.02	0.77	5.20
SDHC Card	16	60	18	20	4.69	9.03	0.99	0.48
SDHC Card	31	60	32	14	4.71	0.81	0.77	4.79
SDHC Card	31	58	37	8	2.77	0.39	1.44	8.75
SDHC Card	31	58	26	21	4.40	0.25	0.94	8.50
SDHC Card	16	57	29	15	3.68	0.00
SDHC Card	16	57	31	12	4.86	1.86	0.80	2.50
SDHC Card	31	56	32	9	4.33	0.49	0.73	10.97
SDHC Card	32	54	21	18	3.92	0.20	1.15	4.28
SDHC Card	32	53	22	17	3.68	2.22	1.11	2.06
SDHC Card	32	53	22	17	3.49	2.07	1.09	2.02
SDHC Card	16	53	35	6	2.20	0.46	2.04	9.03
SDHC Card	31	52	25	16	2.04	0.31	1.88	9.35
SDHC Card	31	52	25	16	2.04	0.31	1.88	9.35
SDHC Card	31	51	32	5	4.39	0.48	0.72	50.86
SDHC Card	31	50	22	15	2.40	0.46	1.98	9.61
SDHC Card	31	50	26	13	2.52	0.47	1.54	8.61
SDHC Card	32	50	22	18	3.05	0.14	1.25	10.24
SDHC Card	32	50	22	17	2.76	0.68	1.39	5.13
SDHC Card	16	49	29	8	3.64	1.12	1.25	3.71
SDHC Card	32	49	20	17	3.35	0.89	1.03	38.75
SDHC Card	17	49	22	16	5.12	0.01	0.77	947.71
SDHC Card	0	49	26	9	4.35	1.55	0.78	2.19
SDHC Card	32	48	20	17	3.56	0.41	1.06	8.20
SDHC Card	32	48	22	18	3.05	1.19	1.30	3.74
SDHC Card	32	47	21	14	3.81	1.91	1.17	45.80
SDHC Card	32	46	22	13	3.32	1.38	1.23	2.89
SDHC Card	31	46	22	15	2.50	0.42	1.54	10.74
SDHC Card	8	46	22	12	3.70	0.80	1.02	3.89
SDHC Card	8	45	30	5	4.08	0.42	0.96	5.21
SDHC Card	32	45	19	14	2.79	0.63	1.54	4.74
SDHC Card	16	45	21	10	3.68	0.65	1.26	6.33
SDHC Card	32	45	23	11	3.52	1.76	1.14	2.43
SDHC Card	31	44	25	8	3.24	0.14	1.50	8.70
SDHC Card	16	44	20	13	2.60	0.38	1.16	10.56
SDHC Card	16	44	20	13	2.60	0.38	1.16	10.56
SDHC Card	8	43	22	12	2.85	0.01	1.47	453.30
SDHC Card	8	43	21	12	4.31	0.01	0.94	613.54
SDHC Card	8	43	22	11	2.85	0.03	0.90	127.23
SDHC Card	4	43	22	8	4.67	1.11	1.12	3.26
SDHC Card	4	42	22	11	2.76	0.02	1.58	257.85
SDHC Card	8	42	21	8	2.73	0.65	1.50	5.36
SDHC Card	16	42	23	12	3.03	1.31	1.15	3.16
SDHC Card	16	41	19	12	2.61	0.35	1.33	10.55
SDHC Card	4	41	20	11	4.88	0.01	0.83	310.28
SDHC Card	8	41	21	8	5.85	0.01	0.73	388.10
SDHC Card	16	41	20	10	2.14	0.50	2.18	8.79
SDHC Card	34	40	18	14	4.43	0.00
SDHC Card	32	40	19	12	2.98	0.01	1.48	337.09
SDHC Card	15	40	19	13	1.41	0.27	3.08	120.52
SDHC Card	32	39	20	9	3.79	0.02	1.10	232.58
SDHC Card	15	39	22	6	4.30	0.14	0.99	8.11
SDHC Card	8	39	19	9	5.78	0.02	0.74	190.54
SDHC Card	32	38	17	13	2.30	0.69	1.78	6.64
SDHC Card	16	38	18	11	2.72	1.32	1.53	3.93
SDHC Card	16	38	23	3	5.42	0.27	0.75	3.28
SDHC Card	16	37	22	6	2.06	0.01	2.06	339.72
SDHC Card	16	37	22	6	2.06	0.01	2.06	339.72
SDHC Card	4	37	20	8	2.37	0.35	1.41	15.48
SDHC Card	16	37	19	9	3.87	0.34	1.06	6.32
SDHC Card	16	37	21	5	5.80	0.01	0.71	207.61
SDHC Card	4	37	22	4	5.55	0.02	0.82	451.15
SDHC Card	4	36	20	7	4.42	0.01	1.08	682.67
SDHC Card	8	35	22	3	3.54	0.01	1.27	846.81
SDHC Card	8	35	22	3	4.53	0.01	0.92	308.02
SDHC Card	16	34	21	4	3.36	0.73	1.31	219.65
SDHC Card	8	34	22	3	2.76	0.70	1.71	5.06
SDHC Card	32	33	18	7	3.34	0.04	1.34	104.07
SDHC Card	8	33	22	3	2.26	0.00
SDHC Card	8	33	21	4	1.88	0.00	2.34	1089.07
SDHC Card	17	32	19	4	2.12	0.08	2.21	50.02
SDHC Card	4	30	17	3	5.26	0.02	0.83	338.54
SDHC Card	4	30	17	5	6.61	0.01	0.72	405.14
SDHC Card	34	30	16	6	3.50	0.01	1.28	663.11
SDHC Card	32	29	22	1	0.85	0.00	4.90	5094.53
SDHC Card	17	28	17	5	1.52	0.07	3.19	64.60
SDHC Card	8	26	15	5	0.81	0.24	3.95	7.52
SDHC Card	32	26	10	9	4.10	0.15	1.08	43.01
SDHC Card	8	25	15	3	0.91	0.56	3.06	6.66
SDHC Card	16	24	13	4	2.29	1.13	1.71	3.65
SDHC Card	16	22	8	7	3.87	1.11	1.12	6.68
SDHC Card	6	20	10	5	2.63	0.03	1.73	180.66
SDHC Card	32	19	0	0	0.00	0.00
SDHC Card	16	18	0	13	0.07	0.08	75.42	43.59
SDHC Card	16	18	0	13	0.07	0.00
SDHC Card	16	17	6	6	3.13	0.04	1.39	113.15
SDHC Card	4	4	1	1	0.91	0.02	4.76	296.53
SDHC Card	4	4	1	1	0.91	0.02	4.76	296.53
SDHC Card	8	0	0	0	0.00	0.00	0.53	4.44
SDHC Card	16	0	0	0	0.00	0.00
SDHC Card	16	0	0	0	0.00	0.00	0.53	2.27
SDHC Card	32	0	0	0	0.00	0.00
SDHC Card	32	0	0	0	0.00	0.00
SDHC Card	16	0	0	0	0.00	0.00
SDHC Card	16	0	0	0	0.00	0.00
SDHC Card	4	0	0	0	0.00	0.00
SDHC Card	4	0	0	0	0.00	0.00
SDHC Card	16	0	0	0	0.00	0.00
SDHC Card	8	0	0	0	0.00	0.00
SDHC Card	34	0	0	0	0.00	0.00
SDHC Card	4	0	0	0	0.00	0.00
SDHC Card	32	0	0	0	0.00	0.00
SDHC Card	4	0	0	0	0.00	0.00
SDHC Card	8	0	0	0	0.00	0.00
SDHC Card	16	0	0	0	0.00	0.00
SDHC Card	8	0	0	0	0.00	0.00	0.46	117.85

SAMSUNG MZMTD128HAFV-000L // Kingston DataTravelerMini USB Devic // WDC WD1600AAJS-07WAA0 ATA Devic // 2 5 SATA SSD 3ME ATA Devic // Hitachi HDP725050GLA36 // KINGSTON SA400S37240 // SanDisk SD6SB1M256G1022 // SAMSUNG MZ7LN256HMJP-0000

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

google: SDHC Card
bing: SDHC Card

---

SDHC card: A comprehensive description

The SDHC (Secure Digital High Capacity) card is a memory card technology designed for storing digital data in a wide variety of devices, including digital cameras, camcorders, mobile phones, tablets, laptops, and even some video game consoles. The SDHC card is part of the SD memory card family and is an evolution of the original SD (Secure Digital) card, offering larger storage capacities and faster transfer speeds compared to older versions.

Technical details and specifications

1. Storage capacity:
- SDHC cards support capacities from 4GB to 32GB. They were developed to meet the growing need for larger storage capacity in multimedia devices. Anything requiring a higher capacity than 32GB uses the SDXC (Secure Digital Extended Capacity) format.

2. File system:
- SDHC cards use the FAT32 file system, which allows support for larger file sizes, unlike the FAT16 of the original SD cards. However, FAT32 has a file size limit of 4GB, which is relevant when recording very large files, such as in high-definition video format.

3. Speed classes:
- SDHC cards are classified into different speed classes that indicate the minimum write speed to meet the needs of specific applications, especially video recording:
- Class 2: 2MB/s
- Class 4: 4MB/s
- Class 6: 6MB/s
- Class 10: 10 MB/s (recommended for Full HD videography)
- In addition to the standard speed classes, there are also the UHS (Ultra High Speed) classes:
- UHS-I: up to 104 MB/s
- UHS-II: up to 312 MB/s (has an additional row of pins for higher speeds)

4. Physical Dimensions:
- A standard SDHC card has the same physical dimensions as a regular SD card:
- 32 mm x 24 mm x 2.1 mm and weighs about 2 grams.
- It has 9 contact pins that are connected to the device.
- There are also mini and micro SDHC versions for smaller devices.

5. Operating temperature:
- Most SDHC cards are designed to operate over a wide temperature range of -25°C to +85°C, making them robust for use in a variety of environmental conditions.

6. Voltage requirements:
- SDHC cards operate at 3.3V, which is an improvement over the original SD cards that could also operate at 3.6V.

SDHC card functions

1. High storage capacity:
- One of the most important features of the SDHC card is its ability to store larger amounts of data compared to the original SD cards. This is especially important for devices that need to handle large amounts of data, such as digital cameras that take high-resolution photos and videos.

2. Fast data transfer:
- Thanks to the different speed classes and UHS classes, SDHC cards offer a wide range of read and write speeds suitable for different applications. For example, Class 10 and UHS-I/II cards are ideal for recording Full HD video and even burst shooting on cameras.

3. Compact and portable design:
- SDHC cards are extremely compact and lightweight, making them a convenient storage medium for on-the-go use. They can be easily transported between devices without taking up much space.

4. Write protection switch:
- Like most SD cards, SDHC cards have a physical write-protect switch on the side. When activated, it prevents data from being written to or erased from the card, providing an additional level of protection against accidental data loss.

5. Backwards compatibility:
- SDHC cards are generally backwards compatible with devices that support SD cards, as long as the device supports the SDHC specification. However, older SD devices (pre-2006) may not be able to read SDHC cards.

Areas of application

1. Digital cameras and camcorders:
- SDHC cards are widely used in digital cameras, especially those that capture high-resolution images and videos. They are ideal for full HD video recording and for use in burst shooting where large amounts of data need to be written quickly to the memory card.

2. Smartphones and tablets:
- In their MicroSDHC form, these cards are often used as expandable storage for mobile devices such as smartphones and tablets. This allows users to expand the limited internal storage space of their devices to store more photos, videos, apps and documents.

3. Video game consoles:
- SDHC cards are also used in some video game consoles as memory expansion, for example for storing downloadable content or game saves.

4. Navigation and drones:
- Many GPS navigation systems and drones use SDHC cards to store maps or video data.

5. Data transport and storage:
- SDHC cards are often used as a temporary storage solution for transporting files between devices because they are lightweight and portable.

6. Industrial applications:
- SDHC cards are also used in industrial equipment, such as automation systems or medical devices that require robust and reliable storage solutions.

Advantages of the SDHC card

- Increased Storage Capacity: Compared to the original SD cards, SDHC cards offer much more storage space, ideal for modern, memory-intensive applications.
- Improved speed: With faster write speeds, they are ideal for Full HD video recording and fast frame rates in cameras.
- Portability: Small, lightweight and easy to carry.
- Affordability: They are relatively inexpensive and widely available compared to other storage solutions.

Disadvantages of the SDHC card

- Limited Backward Compatibility: SDHC cards may not work in older devices that only support SD format.
- Limited to 32 GB: Compared to the SDXC standard, which supports up to 2 TB of storage, the maximum capacity of SDHC cards is limited to 32 GB.

Conclusion

The SDHC card is a versatile and powerful storage medium that offers a reliable solution for a wide range of applications, from photography and videography to mobile data storage. Thanks to their high storage capacity, fast transfer rates and compact design, SDHC cards are a popular choice for many electronic devices.
---

SDHC 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 SDHC Card.

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

SDHC CardUser Benchmarks