AMD Mainboards

GIGABYTE B650 AORUS ELITE AX

AMD B650 FCH - ATX - 4x DDR5-6600 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1, USB 3.2 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - 3x PCI Express 4.0 - Sockel AM5

ASUS Pro A620M-C-CSM (90MB1F80-M0EAYC)

AMD A620 FCH - Micro-ATX - 2x DDR5-6400 - 4x SATA - PCIe-4.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 1 GBit/s LAN - PCI Express 4.0 - Sockel AM5

ASUS Pro B650M-CT-CSM (90MB1EC0-M0EAYC)

AMD B650 FCH - Micro-ATX - 4x DDR5-6400 - 4x SATA - PCIe-4.0 M.2-Slot - USB 3.0, USB 3.1 - 7.1 Audio - 1 GBit/s LAN - 2x PCI Express 4.0 - Sockel AM5

MSI B850 GAMING PLUS WIFI PZ (7E75-001R)

AMD B850 - ATX - 4x DDR5-8200 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 5 GBit/s LAN, WLAN - PCI Express 5.0 - Sockel AM5

ASRock X670E Taichi (90-MXBJ00-A0UAYZ)

AMD X670E FCH - E-ATX (SSI-EEB) - 4x DDR5-6600 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - 2x PCI Express 5.0 - Sockel AM5

ASUS Pro B550M-C/CSM

AMD B550 FCH - Micro-ATX - 4x DDR4-4800MHz - 4x SATA - 2x M.2-Slot - USB 3.0, USB 3.1 - 7.1 Audio - 1 GBit/s LAN - PCI Express 4.0 - Sockel AM4

ASUS TUF GAMING B850M-E WIFI (90MB1LS0-M0EAY0)

AMD B850 - Micro-ATX - 4x DDR5-8000 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - PCI Express 5.0 - Sockel AM5

GIGABYTE B840M A ELITE WIFI6E

AMD B840 - Micro-ATX - 4x DDR5-8200 - 4x SATA - PCIe-4.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - PCI Express 4.0 - Sockel AM5

ASRock A620M-HDV/M.2+ (90-MXBLK0-A0UAYZ)

AMD A620 FCH - Micro-ATX - 2x DDR5-6400 - 4x SATA - PCIe-4.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 4.0 - Sockel AM5

NZXT N7 B650E Matte White (N7-B65XT-W1)

AMD B650E FCH - ATX - 4x DDR5-6000 - 4x SATA - PCIe-4.0 M.2-Slot - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN - 3x PCI Express 5.0 - Sockel AM5

ASRock Rack WRX80D8-2T

AMD WRX80 FCH - max.2 TB DDR4-3200MHz (PC4-25600) - 2x - VGA - kein Audio - 1x Sockel sWRX8

ASUS PRIME B840-PLUS WIFI (90MB1IZ0-M0EAY0)

AMD B840 - ATX - 4x DDR5-7600 - 4x SATA - PCIe-3.0, PCIe-4.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - 3x PCI Express 4.0 - Sockel AM5

GIGABYTE A620M GAMING X

AMD A620 FCH - Micro-ATX - 4x DDR5-6400 - 4x SATA - PCIe-3.0, PCIe-4.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 1 GBit/s LAN - PCI Express 4.0 - Sockel AM5

ASRock B650M PG Riptide (90-MXBJ90-A0UAYZ)

AMD B650 FCH - Micro-ATX - 4x DDR5-6200 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN - 2x PCI Express 4.0 - Sockel AM5

ASUS PRIME B650M-A AX (90MB1C10-M0EAY0)

AMD B650 FCH - Micro-ATX - 4x DDR5-6400 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - 4x PCI Express 4.0 - Sockel AM5

ASRock B650E Taichi (90-MXBKG0-A0UAYZ)

AMD B650E FCH - E-ATX (SSI-EEB) - 4x DDR5-6400 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - 2x PCI Express 5.0 - Sockel AM5

ASUS PRIME B650M-A-CSM (90MB1C10-M0EAYC)

AMD B650 FCH - Micro-ATX - 4x DDR5-5600 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN - 3x PCI Express 4.0 - Sockel AM5

ASRock Rack B650D4U3-2L2Q/BCM

AMD B650E FCH - Micro-ATX - max.48 GB DDR5-5600 - 4x SATA - PCIe-5.0 M.2 - USB 3.0 - 25 GBit/s + 1 GBit/s LAN - PCI Express 5.0 - 1x Sockel AM5

Supermicro H12SSL-NT (MBD-H12SSL-NT-O)

SoC - max.2 TB DDR4-3200MHz (PC4-25600) - 2x SAS - 3x Gbit LAN - VGA - kein Audio - 1x Sockel SP3

ASUS PRIME A520M-R (90MB1H60-M0EAY0)

AMD A520 FCH - Micro-ATX - 2x DDR4-5100MHz - 4x SATA - PCIe-3.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel AM4

Biostar B650M-SILVER

AMD B650 FCH - Micro-ATX - 4x DDR4-6000MHz - 4x SATA - PCIe-4.0 M.2-Slots - USB 3.0, USB 3.1, USB 3.2 - 7.1 Audio - 2,5 GBit/s LAN - 2x PCI Express 4.0 - Sockel AM5

NZXT N9 X870E White (N9-X87XT-W1)

AMD X870E FCH - ATX - 4x DDR5-8000 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 5 GBit/s LAN, WLAN - PCI Express 5.0 - Sockel AM5

Supermicro H11DSI Retail (MBD-H11DSI-NT-O)

SoC - max.4 TB DDR4-3200MHz (PC4-25600) - 3x Gbit LAN - VGA - kein Audio - 2x Sockel SP3

ASRock AM5D4ID-2T/BCM

SoC - Deep Mini-ITX - max.192 GB DDR5-5200 - PCIe-4.0 M.2 - OCuLink - USB 3.0 - 10 GBit/s + 10 GBit/s LAN - PCI Express 5.0 - 1x Sockel AM5

MSI PRO B850-S WIFI6E (7E80-002R)

AMD B850 - ATX - 4x DDR5-8200 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - PCI Express 5.0 - Sockel AM5

GIGABYTE B850M EAGLE WIFI6E ICE

AMD B850 - Micro-ATX - 4x DDR5-8200 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - PCI Express 5.0 - Sockel AM5

ASRock Rack GENOAD8UD-2T/X550

SoC - max.512 GB DDR5-5200 - 1x SAS - 2x - VGA - kein Audio - 1x Sockel SP5 (LGA6096)

GIGABYTE GA-AX370-Gaming K7

AMD X370 FCH - ATX - 4x DDR4-3200MHz - 8x SATA 6Gb/s - 1x M.2-Slot - 1x U.2-Sockel - USB 3.0, USB 3.1 - 7.1 Audio - 3x PCI Express 3.0 - Sockel AM4

ASUS PRIME B840M-A WIFI (90MB1J20-M0EAY0)

AMD B840 - Micro-ATX - 4x DDR5-7600 - 4x SATA - PCIe-3.0, PCIe-4.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - 3x PCI Express 4.0 - Sockel AM5

ASRock B450M Pro4 (90-MXB8F0-A0UAYZ)

AMD B450 FCH - Micro-ATX - 4x DDR4-3200MHz - 4x SATA 6Gb/s - 2x M.2-Slot - USB 3.1(Gen.1), USB 3.1 - 7.1 Audio - 1 GBit/s LAN - 2x PCI Express 3.0 - Sockel AM4

ASUS Pro A520M-C II/CSM (90MB18F0-M0EAYC)

AMD A520 FCH - Micro-ATX - 2x DDR4-4800MHz - 4x SATA - PCIe-3.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel AM4

ASUS B850M MAX GAMING WIFI (90MB1LL0-M0EAY0)

AMD B850 - Micro-ATX - 4x DDR5-8000 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 1 GBit/s LAN, WLAN - PCI Express 5.0 - Sockel AM5

ASUS Pro A620M-DASH-CSM (90MB1GD0-M0EAYC)

AMD A620 FCH - Micro-ATX - 2x DDR5-7200 - 4x SATA - PCIe-4.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 4.0 - Sockel AM5

MSI PRO B840M-B (7E76-002R)

AMD B840 - Micro-ATX - 2x DDR5-8000 - 4x SATA - PCIe-4.0 M.2-Slots - USB 3.0 - 7.1 Audio - 2,5 GBit/s LAN - PCI Express 4.0 - Sockel AM5

NZXT N7 B650E Matte Black (N7-B65XT-B1)

AMD B650E FCH - ATX - 4x DDR5-6000 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN - 3x PCI Express 5.0 - Sockel AM5

Biostar B550MX/E PRO

AMD B550 FCH - Micro-ATX - 4x DDR4-4400MHz - 4x SATA - PCIe-3.0, PCIe-4.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - 2x PCI Express 4.0 - Sockel AM4

GIGABYTE MC13-LE0

AMD B650E FCH - Micro-ATX - max.128 GB DDR5-5200 - 4x SATA - PCIe-5.0 M.2 - USB 3.0 - 1 GBit/s LAN - PCI Express 5.0 - 1x Sockel AM5

Biostar B650MP-E PRO

AMD B650 FCH - Micro-ATX - 4x DDR4-6000MHz - 4x SATA - PCIe-4.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN - PCI Express 4.0 - Sockel AM5

ASUS ROG Crosshair VIII Hero WI-FI

AMD X570 FCH - ATX - 4x DDR4-3200MHz - 8x SATA 6Gb/s - 2x M.2-Slot - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s & 1 GBit/s LAN, WLAN - 3x PCI Express 4.0 - Sockel AM4

GIGABYTE B650 AERO G

AMD B650 FCH - ATX - 4x DDR5-8000 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - 3x PCI Express 4.0 - Sockel AM5

GIGABYTE B450M H

AMD B450 FCH - Micro-ATX - 2x DDR4-3200MHz - 4x SATA - 1x M.2-Slot - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel AM4

Supermicro H11DSi-NT AMD EPYC 7000 Serverboard

SoC - max.2048GB DDR4-2666MHz (PC4-21300) - 10x SATA - 2x 10 GBit/s - VGA - kein Audio - 2x Sockel SP3

ASUS TUF GAMING B550M-E WIFI

AMD B550 FCH - Micro-ATX - 4x DDR4-4800MHz - 4x SATA - 2x M.2-Slot - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - PCI Express 4.0 - Sockel AM4

GIGABYTE GA-A320M-H

AMD A320 FCH - Micro-ATX - 2x DDR4-3200MHz - 4x SATA 6Gb/s - 1x M.2-Slot - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel AM4

ASRock TRX40D8-2N2T

AMD TRX40 FCH - max.256 GB DDR4-4600MHz (PC4-36800) - nicht SAS - 4x - VGA - kein Audio - 1x Sockel sTRX4

ASUS PRIME B650M-A WIFI (90MB1C00-M0EAY0)

AMD B650 FCH - Micro-ATX - 4x DDR5-6400 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - 3x PCI Express 4.0 - Sockel AM5

GIGABYTE B650 AORUS PRO AX

AMD B650 FCH - ATX - 4x DDR5-6600 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - 2x PCI Express 4.0 - Sockel AM5

Biostar A620MP-E PRO

AMD A620 FCH - Micro-ATX - 4x DDR5-6000 - 4x SATA - PCIe-4.0 M.2-Slots - USB 3.0 - 7.1 Audio - 2,5 GBit/s LAN - PCI Express 4.0 - Sockel AM5

GIGABYTE B550M GAMING X WIFI6

AMD B550 FCH - Micro-ATX - 4x DDR4-3200MHz - 4x SATA - PCIe-3.0, PCIe-4.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN, WLAN - PCI Express 4.0 - Sockel AM4

NZXT N9 X870E Black (N9-X87XT-B1)

AMD X870E FCH - ATX - 4x DDR5-8000 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 5 GBit/s LAN, WLAN - PCI Express 5.0 - Sockel AM5

ASROCK AM1B-M

AMD SoC - Micro-ATX - DDR3-1600MHz - 2x SATA 6Gb/s - USB 3.0 - 5.1 Audio - PCI Express 2.0 - Sockel AM1

GIGABYTE A620M S2H

AMD A620 FCH - Micro-ATX - 2x DDR5-6400 - 4x SATA - PCIe-4.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 4.0 - Sockel AM5

Biostar B450MX

AMD B450 FCH - Micro-ATX - 4x DDR4-4333MHz - 4x SATA - PCIe-3.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - 2x PCI Express 3.0 - Sockel AM4

ASRock X399M Taichi

AMD X399 FCH - Micro-ATX - 4x DDR4-3600MHz+ - 8x SATA 6Gb/s - 3x M.2-Slot - 1x U.2-Port - USB 3.0, USB 3.1 - 7.1 Audio - 3x PCI Express 3.0 - Sockel TR4

ASUS Pro A620AT-CSM (90MB1L5M-M0EAYC)

AMD A620 - Mini-ITX - 2x DDR5-4800 - 2x SATA - PCIe-4.0 M.2-Slots - USB 3.1 - 7.1 Audio - 1 GBit/s LAN - Sockel AM5

Biostar RACING B550GTQ

AMD B550 FCH - Micro-ATX - 4x DDR4-4933MHz - 6x SATA - 2x M.2-Slot - USB 3.0, USB 3.1 - 7.1 Audio - 1 GBit/s LAN - 2x PCI Express 4.0 - Sockel AM4

ASUS TUF GAMING B850M-PLUS WIFI7 W (90MB1MD0-M0EAY0)

AMD B850 - Micro-ATX - 4x DDR5-8000 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0, USB 3.1, USB 3.2 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - PCI Express 5.0 - Sockel AM5

ASUS ROG Crosshair VIII Hero

AMD X570 FCH - ATX - 4x DDR4-3200MHz - 8x SATA 6Gb/s - 2x M.2-Slot - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s & 1 GBit/s LAN - 3x PCI Express 4.0 - Sockel AM4

Biostar A520MHP

AMD A520 FCH - Micro-ATX - 2x DDR4-4400MHz - 4x SATA - PCIe-3.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel AM4

Biostar B550MH

AMD B550 FCH - Micro-ATX - 2x DDR4-4933MHz - 4x SATA - 1x M.2-Slot - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 4.0 - Sockel AM4

MSI B840M GAMING PLUS WIFI6E (7E77-003R)

AMD B840 - Micro-ATX - 4x DDR5-8000 - 4x SATA - PCIe-4.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - PCI Express 4.0 - Sockel AM5

ASUS S14NA-U12 - Motherboard - SSI CEB - Socket SP6 (90SB0CG0-M0UAY0)

Biostar A520MT

AMD A520 FCH - Micro-ATX - 2x DDR4-4933MHz - 4x SATA - PCIe-3.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel AM4

Supermicro H12SSW-NT For A+ Server Only (MBD-H12SSW-NT-B)

SoC - max.2 TB DDR4-3200MHz (PC4-25600) - 3x Gbit LAN - VGA - kein Audio - 1x Sockel SP3

GIGABYTE B550 AORUS ELITE

AMD B550 FCH - ATX - 4x DDR4-4733MHz - 4x SATA - 2x M.2-Slot - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN - 3x PCI Express 4.0 - Sockel AM4

Biostar B450MH

AMD B450 FCH - Micro-ATX - 2x DDR4-3200MHz - 4x SATA 6Gb/s - 1x M.2-Slot - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel AM4

ASUS PRIME B450M-A (90MB0YR0-M0EAY0)

AMD B450 FCH - Micro-ATX - 4x DDR4-3200MHz - 6x SATA 6Gb/s - 1x M.2-Slot - USB 3.0, USB 3.1 - 7.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel AM4

GIGABYTE B550M DS3H R2

AMD B550 FCH - Micro-ATX - 4x DDR4-4733MHz - 4x SATA - PCIe-3.0, PCIe-4.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 4.0 - Sockel AM4

Supermicro Mainboard H12SSL-i Single Sockel SP3 (MBD-H12SSL-I-O)

MSI MAG A520M VECTOR WIFI (7D14-008R)

AMD A520 FCH - Micro-ATX - 2x DDR4-4600MHz - 4x SATA - 1x M.2-Slot - USB 3.0 - 7.1 Audio - 1 GBit/s LAN, WLAN - PCI Express 3.0 - Sockel AM4

MSI PRO B840M-P WIFI6E (7E77-001R)

AMD B840 - Micro-ATX - 4x DDR5-8000 - 4x SATA - PCIe-4.0 M.2-Slots - USB 3.0, USB 3.1 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - PCI Express 4.0 - Sockel AM5

GIGABYTE A520M K

AMD A520 FCH - Micro-ATX - 2x DDR4-5100MHz - 4x SATA - PCIe-3.0 M.2-Slots - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel AM4

ASUS PRIME A520M-E

AMD A520 FCH - Micro-ATX - 2x DDR4-4800MHz - 4x SATA - 1x M.2-Slot - USB 3.0, USB 3.1 - 7.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel AM4

Supermicro H13SSL-NT ATX Mainboard Sockel SP5 AMD Epyc (MBD-H13SSL-NT-O)

GIGABYTE A520M DS3H

AMD A520 FCH - Micro-ATX - 4x DDR4-4733MHz - 4x SATA - 1x M.2-Slot - USB 3.0 - 7.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel AM4

ASRock B850M-X WiFi R2.0 (90-MXBSH0-A0UAYZ)

AMD B850 - Micro-ATX - 2x DDR5-8200 - 4x SATA - PCIe-4.0, PCIe-5.0 M.2-Slots - USB 3.0 - 7.1 Audio - 2,5 GBit/s LAN, WLAN - PCI Express 5.0 - Sockel AM5

ASRock GENOA2D24G-2L+

Dual Sockel SP5 - 2 unterstützte CPUs - USB 3.2 Gen 1 - 2 x Gigabit LAN

ASUS TUF B450M-PRO GAMING

AMD B450 FCH - Micro-ATX - 4x DDR4-3466MHz - 6x SATA 6Gb/s - 2x M.2-Slot - USB 3.0, USB 3.1 - 7.1 Audio - 1 GBit/s LAN - 2x PCI Express 3.0 - Sockel AM4

ASRock ROME2D16-2T

Motherboard - LGA 4094 - EEB - Sockel SP3

ASRock Mainboard SIENAD8-2L2T ATX Sockel SP6 Single

Supermicro Mainboard H12SSL-CT Single Sockel SP3 (MBD-H12SSL-CT-O)

Biostar A68MHE

AMD A68H FCH - Micro-ATX - 2x DDR3-2600MHz - 4x SATA - USB 3.0 - 5.1 Audio - 1 GBit/s LAN - PCI Express 3.0 - Sockel FM2+

Supermicro H8DGT-HF Mainboard - Skt G34 AMD SR5670 (MBD-H8DGT-HF-B)

ASRock Mainboard GENOAD8X-2T/BCM EEB Sockel SP5 Single