arkadaşlar kısaca tanınmış markalardan core2 duo işlemci destekleyen anakartları yayınlamak istedim anakart arayanlara umarım yararı olur
ilk önce ASUS ile baslıyacam
ASUS intel975x chipsetli modelleri
P5W DH Deluxe
- LGA775 socket for Intel Core2 Duo, Core2 Extreme and next generation Mulit-Core CPU - Intel 975X +Intel ICH7R - 1066/800MHz - Dual-channel DDR2 800/667/ 533 max 8GB - 2 x PCI-E x 16 / 2 x PCI-E x 1/ 3 x PCI - Support ATI CrossFire graphics cards - Intel Matrix Storage technology - Dual Gigabit LAN - Dolby Master Studio technology - ASUS EZ-Backup - ASUS Digital Home features
P5W64 WS Professional
Intel Core™2 Extreme / Core™2 Duo Ready Quad-core CPU Ready DDR2 800/667/533 FSB 1066/800/533 Quad PCI-E x 16 slots
P5WDG2 WS Professional
Intel Core™2 Extreme / Core™2 Duo Ready Dual-core CPU Ready DDR2 800/667/533 FSB 1066/800/533 Dual PCI-E x 16 Graphics PCI-X Architecture
INTEL P965 Chipsetli Modeller
P5B-E
Intel LGA775 Platform - Intel® Core™ 2 Extreme / Core™2 Duo Ready - Intel® Pentium® D / Pentium® 4 / Celeron® D Ready - Intel® P965 / ICH8R - Dual-channel DDR2 800/667/533 - ESATA and IEEE 1394 Support
P5B Deluxe
- Intel LGA775 Platform - Intel® Core™2 Extreme / Core™2 Duo Ready - Intel® Pentium® Extreme / Pentium® D / Pentium® 4 / Celeron® D Ready - Dual-channel DDR2 800/667/533 - AI NOS™ / AI Gear / AI Nap - 8 Phase Power Design - Fanless Design - Heat Pipe & Stack Cool 2 - Array Mic / Noise Filter
P5B Deluxe/WiFi-AP
Intel LGA775 Platform - Intel® Core™2 Extreme / Core™2 Duo Ready - Intel® Pentium® Extreme / Pentium® D / Pentium® 4 / Celeron® D Ready - Dual-channel DDR2 800/667/533 - AI NOS™ / AI Gear / AI Nap - 8 Phase Power Design - Fanless Design - Heat Pipe & Stack Cool 2 - Array Mic / Noise Filter - WiFi-AP Solo
P5B
Intel LGA775 Platform - Intel® Core™2 Extreme / Core™2 Duo Ready - Intel® Pentium® Extreme / Pentium® D / Pentium® 4 / Celeron® D Ready - 1066/800/ 533 MHz - Dual-channel DDR2 800/667/533 - 1x PCI Express x16 - 6x SATA 3Gb/s - RTL8111B PCI-E Gb LAN - 8-channel HD Audio - AI NOS™ / AI Gear / AI Nap
INTEL G965 chipsetli modeller
P5B-V
Intel LGA775 Platform - Intel® Core™2 Extreme/ Core™2 Duo Ready - FSB 1066/800/533 - Dual-channel DDR2 800/667/533 - Intel® GMA X3000 GPU integrated - Fanless Design - Stack Cool 2 - 1394/ SATA on the Go - Gb LAN/ 8-ch HD Audio - AI NOS/ AI Gear/ AI Nap
P5B-VM
Intel LGA775 Platform - Intel® Core™2 Extreme / Core™2 Duo Ready - Intel® Pentium® D / Pentium® 4 / Celeron® D Ready - Intel® G965 / ICH8 - Intel® GMA X3000, Intel® Clear Video Technology - Dual-channel DDR2 800/667/533 - ESATA and IEEE 1394 Support - AI Gear / AI Nap / ASUS Advanced Q-Fan
INTEL 945G Chipsetli Modeller
P5LD2-VM
Intel 945G chipset - Intel LGA775 Pentium 4 CPU - Intel® Core™2 Extreme / Core™2 Duo Ready - Dual-Core CPU Support - Intel Graphics Media Accelerator 950 - DDR2 667/533/400 - Intel Gb LAN - 64-bit CPU support
*Only PCB R2.0(or higher) support Intel® Core™2 processor
P5L-VM 1394
- Intel 945G chipset - Intel LGA775 Pentium 4 CPU - Intel® Core™2 Extreme / Core™2 Duo Ready - Dual-Core CPU Support - Integrated Intel® Graphics Media Accelerator 950 Graphics - Dual channel DDR2 - IEEE 1394a
P5L-MX
LGA775 socket for Intel® Core™2 Extreme / Core™2 Duo / Pentium® D / Pentium® 4 / Celeron® D Processors - Compatible with Intel® FMB 06/05B/05A processors - Intel® 945G + ICH7 chipset - 1066 / 800 / 533 MHz FSB - PCI Express X16 - MAX 4 * SATA 300/150 - Compliant with RoHS
P5LD2-VM SE
Intel 945G chipset - Intel LGA775 Pentium 4 CPU - Intel® Core™2 Extreme / Core™2 Duo Ready - Dual-Core CPU Support - Intel Graphics Media Accelerator 950 - DDR2 667/533/400 - Intel Gb LAN - 64-bit CPU support
P5LD2-VM DH
LGA775 socket for Intel® 65nm Pentium D/Pentium 4/Celeron CPU - Intel® Core™2 Extreme / Core™2 Duo Ready - Intel 945G +Intel ICH7 DH; Support Intel Viiv™ Technology - 1066/800/ 533 MHz - Dual-channel DDR2 667/ 533 - 1 x PCI-E x 16 / 1 x PCI-E x 1/ 2 x PCI - Intel Graphics Media Accelerator 950 - Intel Matrix Storage technology - Intel Gb LAN - 8-Channel HD audio - Intel Quick Resume
*Only PCB R2.0(or higher) support Intel® Core™2 processor
INTEL 945P Chipsetli Modeller
P5LD2 SE
Intel 945P chipset - Intel LGA775 Pentium 4 CPU - Intel® Core™2 Extreme / Core™2 Duo Ready - Dual-Core CPU Ready - FSB 1066/800/533 - DDR2 667/533/400 - RTL8111B PCIe Gbit LAN
*Only PCB R2.0(or higher) support Intel® Core™2 processor
P5LD2
Intel 945P chipset - Intel LGA775 Pentium 4 CPU - Intel® Core™2 Extreme / Core™2 Duo Ready - Dual-Core CPU Ready - FSB 1066/800/533 - DDR2 667/533/400 - Marvell PCIe Gbit LAN - WiFi-TV (Optional)
*Only PCB R2.0(or higher) support Intel® Core™2 processor
P5L 1394
Intel 945P chipset - Intel LGA775 Pentium 4 CPU - Intel® Core™2 Extreme / Core™2 Duo Ready - Dual-Core CPU Ready - FSB 1066/800/533 - DDR 2 667/533/400 - External SATA/IEEE 1394a at back I/O
Intel® LGA775 Platform - Intel® Core™2 Extreme / Core™2 Duo Ready - Intel® Pentium® D / Pentium® 4 / Celeron® D Ready - Dual-channel DDR2 667/533 - NVIDIA® SLI™ Technology - ASUS Q-Connector - ASUS O.C. Profile
VIA P4M890 Chipsetli Modeller
P5VD2-MX
- Intel LGA775 Pentium 4 CPU - Support Intel® Presler 65nm Dual core and Core™2 Duo CPU - PCI Express architecture - DDR2 533/400 - Dual SATA RAID (RAID0, RAID1 & JBOD) - External SATA on rear - High Definition Audio
P5V-VM DH
ASUS Digital Home Series - LGA775 socket for Intel Core™2 Duo/Pentium D/Pentium 4/Celeron - 1 x PCI-E x 16 / Integrated VIA UniChrome Graphics - External Serial ATA 3.0Gb/s - ASUS WiFi-AP Solo - Asus DH Remote™ - ASUS MP3-In™ - High Definition Audio
2. Olarak Sırada var
INTEL P965 Chipsetli Modeller
GA-965P-DS4
Intel P965+ ICH8R chipset Supports Intel® Core™2 Extreme / Core™2 Duo processor Supports Dual channel DDR2 800 memory Features Dual PCI-E graphics interface Features SATA 3Gb/s with RAID function 8 Channels Intel High Definition Audio Optimized Gigabit LAN and IEEE 1394 connection Industry's leading all solid capacitor motherboard design
GA-965P-DQ6
Intel P965+ ICH8R chipset Supports Intel® Core™2 Extreme / Core™2 Duo / Intel® Pentium® D processor First Quad BIOS solution for Multiple protection Supports new generation Microsoft operation system Windows VISTA Industry's first All-Solid capacitor motherboard design Unique 0dB cooling design with Crazy Cool and Silent-Pipe Quad Triple phase power design for ultimate system stability Dual PCI-E graphics interface for extreme gaming performance Supports high performance Dual Channel DDR2 800 memory Features SATA 3Gb/s with Quad eSATA 2 interface Home theater quality 8-channel High Definition Audio Supports both Dolby and DTS high quality audio functions. Optimized PCI-E Gigabit LAN and IEEE 1394 connection Ready for next generation Quad Core processor
GA-965P-DS3
Intel P965+ ICH8 chipset Supports Intel® Core™ 2 Extreme / Core™ 2 Duo processor Supports Dual channel DDR2 800 memory Features PCI-E graphics interface Features SATA 3Gb/s interface with RAID function Intel High Definition 8 Channels Audio Optimized Gigabit LAN connection Industry's leading all solid capacitor motherboard design
GA-965P-S3
Intel P965+ ICH8 chipset Supports Intel® Core™2 Extreme/Core™2 Duo Processor Supports high performance Dual Channel DDR2 800 memory Features PCI Express x16 for outstanding graphics performance Integrated new generation SATA 3Gb/s interface Optimized Gigabit LAN connection Features 8-channel Intel High Definition Audio
INTEL G965 Chipsetli Modeller
GA-965G-DS3
Intel G965+ ICH8 chipset Supports Intel ® Core™ 2 Extreme/ Core™ 2 Duo processor Supports high performance Dual channel DDR2 800 memory Features All Solid Capacitors motherboard design Integrated Intel Graphics Media Accelerator X3000 (Intel GMA X3000) Features PCI Express graphics interface Integrated new generation SATA 3Gb/s interface Optimized Gigabit LAN connection 8-Channel Intel High Definition Audio
INTEL 945PL Chipsetli Modeller
GA-945PLM-S2
(Rev 1.0) Intel 945PL+ ICH7 chipset Support Intel® next generation Core™2 Duo/Pentium™ D Processor Dual Channel DDR2 533 for advanced system performance Features PCI Express x16 for outstanding graphics performance Features SATA 3Gb/s interface Optimized Gigabit LAN connection Features 8-channel Intel High Definition Audio * Duo to 945PL express chipset specification, GA-945PLM-S2 can only support up to FSB800MHz.
INTEL 945G Chipsetli Modeller
GA-945G-S3
Intel 945G+ ICH7 Chipset Support Intel® Core™2 Extreme/ Core™2 Duo/ Pentium® D Processor Dual Channel DDR2 667 for advanced system performance Integrated Intel® Graphic Media Accelerator 950 Features SATA 3Gb/s interface Optimized Gigabit LAN connection Integrate Intel High Definition Audio RoHS Compliant Motherboard
Chipset Intel® 975X Express Chipset - North bridge: Intel® 975X - South bridge: Intel® ICH7R
Memory Four 240-pin DDR2 DIMM sockets Supports DDR2 533, DDR2 667 and DDR2 800 DIMMs Supports dual channel (128-bit wide) memory interface Supports up to 8GB system memory
Expansion Slots 2 PCI Express x16 slots - CrossFire mode: The two x16 slots each operate at x8 bandwidth. - Single VGA mode: Supports only one x16 slot operating at x16 bandwidth. 1 PCI Express x1 slot 1 PCI Express x4 slot 2 PCI slots
BIOS Award BIOS 8Mbit flash memory
Power Management ACPI and OS Directed Power Management ACPI STR (Suspend to RAM) function Wake-On-PS/2 Keyboard/Mouse Wake-On-USB Keyboard/Mouse Wake-On-LAN Wake-On-Ring RTC timer to power-on the system AC power failure recovery
Hardware Monitor Monitors CPU / system / north bridge temperature and overheat alarm Monitors Vcore/Vdimm/Vnb/VCC5/12V/V5sb/Vbat voltages Monitors the speed of the cooling fans CPU Overheat Protection function monitors CPU temperature and fan during system boot-up - automatic shutdown upon system overheat
Audio Realtek ALC882 High Definition audio CODEC 8-channel audio output True stereo line level outputs S/PDIF interface
LAN Realtek RTL8111B PCIE Gigabit LAN Fully compliant to IEEE 802.3 (10BASE-T), 802.3u (100BASE-TX) and 802.3ab (1000BASE-T) standards
IDE Supports up to UltraDMA 100Mbps IDE devices
Serial ATA Intel chipset supports: - Four SATA ports - SATA speed up to 3Gb/s - RAID 0, RAID 1, RAID 0+1 and RAID 5 JMB360 chip supports: - One eSATA (external SATA) port - SATA speed up to 3Gb/s
Rear Panel I/O Ports 1 mini-DIN-6 PS/2 mouse port 1 mini-DIN-6 PS/2 keyboard port 1 parallel port 1 optical S/PDIF-out port 1 RCA S/PDIF-out port 1 eSATA port 1 IEEE 1394 port 1 RJ45 LAN port 4 USB 2.0/1.1 ports Line-in, line-out (front R/L) and mic-in jacks Center/subwoofer, rear R/L and side R/L jacks
I/O Connectors 2 connectors for 4 additional external USB 2.0 ports 1 connector for 1 external IEEE 1394 port 2 connectors for 2 external serial ports 1 front audio connector for line-out and mic-in jacks 1 CD-in internal audio connector 1 connector for IrDA interface 4 Serial ATA connectors 1 40-pin IDE connector 1 floppy connector 1 24-pin ATX power connector 1 8-pin 12V power connector 1 4-pin 5V/12V power connector (FDD type) 1 front panel connector 3 fan connectors EZ touch switches (power switch and reset switch)
PCB 6 layers, ATX form factor 24.4cm (9.6") x 30.5cm (12")
All specifications above are subject to change without prior notice.
6.Sırada ise ucuz olması ile bilinen da
ConRoe945G-DVI
LGA 775 for Intel® Core™ 2 Duo / Pentium® D / Pentium® 4 / Celeron® D, supporting Conroe processors Intel® 945G Chipset Supports FSB 1066/800/533 MHz processor, EM64T CPU and H-T Technology Supports Dual Channel DDRII667/533 x 4 DIMM slots with max. capacity up to 4GB Intel® Graphics Media Accelerator 950, Pixel Shader 2.0, DirectX 9.0 and Max. shared memory 192MB 1 x PCI Express x16 slot, 1 x PCI Express x1 slot Supports Gigabit LAN 10/100/1000 Mb/s Dual VGA Output: support DVI-D and D-Sub ports with DVI Graphics-SI card by independent display controllers Hybrid Booster - Safe Overclocking Technology Untied Overclocking : During Overclocking, FSB enjoys better margin due to fixed PCIE/ PCI Buses 4 x Serial ATAII 3.0 Gb/s connectors 7.1 CH Vista™ Premium level HD Audio (ALC888 Audio Codec) Windows® Vista™ Premium Logo Hardware Ready HD 8CH I/O: 4 ready-to-use USB ports, HD 7.1 channel audio jacks
ConRoeXFire-eSATA2
LGA 775 for Intel® Core™ 2 Duo / Pentium® D / Pentium® 4 / Celeron® D, supporting Conroe processors Intel® 945P Chipset Supports FSB 1066/800/533 MHz processor, EM64T CPU and H-T Technology Untied Overclocking : During Overclocking, FSB enjoys better margin due to fixed PCIE/ PCI Buses Supports Dual Channel DDRII667/533 x 4 DIMM slots, with max. capacity up to 4GB Supports ATI CrossFire™ 1 x PCI Express x 16 slot Additional AGI Express slot to adopt 2nd PCI Express x 16 VGA card, and other PCI Express x4, x2, x1 interface cards 1 x PCI Express x 1 slot Hybrid Booster - Safe Overclocking Technology Supports Gigabit LAN 10/100/1000 Mb/s 2 x IEEE1394 headers 4 x Serial ATAII 3.0 Gb/s, support RAID (RAID 0, RAID 1, RAID 10, RAID 5 and Intel® Matrix Storage), NCQ, AHCI and "Hot Plug" functions 2 x eSerial ATAII 3.0 Gb/s, support "Hot Plug" function HDMI_SPDIF header, providing SPDIF audio output to HDMI VGA card, allows the system to connect HDMI Digital TV/projector/LCD devices. 7.1 Channel with High Definition Audio Windows Vista™ Premium Logo Hardware Ready ASRock 8CH_eSATAII I/O: 2 eSATAII ports, 2 ready-to-use USB ports
ConRoe865PE
LGA 775 for Intel® Core™ 2 Duo/ Pentium® XE / Pentium® D / Pentium® 4 / Celeron® D, supporting Conroe processors Intel® 865PE Chipset FSB 1066/800/533 MHz, supports EM64T CPU and Hyper-Threading Technology Untied Overclocking : During Overclocking, FSB enjoys better margin due to fixed PCIE/ PCI Buses Supports Dual Channel DDR400, 4 x DIMM slots, with max. capacity up to 4GB Hybrid Booster - ASRock Safe Overclocking Technology 1 x AGP 8X slot 2 x Serial ATA 1.5 Gb/s 7.1 Channel Superior Quality Audio ASRock 8CH I/O: 4 ready-to-use USB ports, 7.1 channel audio jack
7.Sırada ise Core2 duo nun yaratıcısı de
Intel® Desktop Board D975XBX
Features Benefits Form Factor ATX (12.00 inches by 9.60 inches [304.80 millimeters by 243.84 millimeters]) Processor Support for Intel® Core™2 Extreme Processor^ in an LGA775 socket with a 1066 MHz system bus Support for Intel® Core™2 Duo Processor^ in an LGA775 socket with a 1066 or 800 MHz system bus Support for Intel® Pentium® Processor Extreme Edition (in an LGA775 socket with a 1066 or 800 MHz system bus) Support for Intel® Pentium® 4 Processor Extreme Edition supporting Hyper-Threading Technology† (in an LGA775 socket with a 1066 MHz system bus) Support for Intel® Pentium® D Processor (in an LGA775 socket with a 800 MHz system bus) Support for Intel® Pentium® 4 Processor supporting Hyper-Threading Technology† (in an LGA775 socket with a 800 MHz system bus) View all supported processors
ATI* CrossFire* Multi-GPU Platform Support ATI CrossFire technology enables two ATI graphics cards to work together for ultimate 3D gaming performance and visual quality Memory Four 240-pin DDR2 SDRAM Dual Inline Memory Module (DIMM) sockets Support for 667 and 533 MHz DDR2 DIMMs Support for up to 8 GB of system memory Support for ECC and non-ECC memory
Chipset Intel® 975X Express Chipset I/O Control Legacy I/O controller for diskette drive, serial, parallel, and PS/2* ports Audio Intel® High Definition Audio subsystem LAN Support Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel® 82573E/82573L Gigabit Ethernet Controller Peripheral Interfaces Eight USB 2.0 ports One serial port One parallel port Four Serial ATA interfaces with RAID support (four additional interfaces available with optional discrete RAID controller) One parallel ATA IDE interface with UDMA 33, ATA-66/100 support One diskette drive interface PS/2 keyboard and mouse ports
Expansion Capabilities Two PCI Conventional bus add-in card connectors (SMBus routed to both PCI Conventional bus add-in card connectors) One Primary PCI Express* x16 (electrical x16 or x8) bus add-in card connector One Secondary PCI Express* x16 (electrical x8) bus add-in card connector One PCI Express* x16 (electrical x4) bus add-in card connector
Intel® Desktop Board DQ965WC
picoBTX (8.00 inches by 10.50 inches [203.20 millimeters by 266.70 millimeters]) Processor Support for an Intel® Core™2 Duo processor in an LGA775 socket with a 1066 or 800 MHz system bus Support for an Intel® Pentium® D processor in an LGA775 socket with an 800 or 533 MHz system bus Support for an Intel® Pentium® 4 processor in an LGA775 socket with an 800 or 533 MHz system bus Support for an Intel® Celeron® D processor in an LGA775 socket with a 533 MHz system bus
Memory Four 240-pin DDR2 SDRAM Dual Inline Memory Module (DIMM) sockets Support for DDR2 800, DDR2 667, or DDR2 533 MHz DIMMs Support for up to 8 GB of system memory
Chipset Intel® Q965 Express Chipset Audio 6-channel (5.1) audio subsystem using the SigmaTel* STAC9227 audio codec Video Intel® Graphics Media Accelerator 3000 (Intel® GMA 3000) onboard graphics subsystem LAN Support Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel® 82566DM Gigabit Ethernet Controller Peripheral Interfaces Ten USB 2.0 ports Two IEEE-1394a interfaces: one back panel connector and one front-panel header Four Serial ATA IDE interfaces
Trusted Platform Module (TPM), revision 1.2 A component that enhances platform security Expansion Capabilities One PCI Express* x16 bus add-in card connector
Intel® Desktop Board DQ965CO
microBTX (10.40 inches by 10.50 inches [264.16 millimeters by 266.70 millimeters]) Processor Support for an Intel® Core™2 Duo processor in an LGA775 socket with a 1066 or 800 MHz system bus Support for an Intel® Pentium® D processor in an LGA775 socket with an 800 or 533 MHz system bus Support for an Intel® Pentium® 4 processor in an LGA775 socket with an 800 or 533 MHz system bus Support for an Intel® Celeron® D processor in an LGA775 socket with a 533 MHz system bus
Memory Four 240-pin DDR2 SDRAM Dual Inline Memory Module (DIMM) sockets Support for DDR2 800, DDR2 667, or DDR2 533 MHz DIMMs Support for up to 8 GB of system memory
Chipset Intel® Q965 Express Chipset Audio 6-channel (5.1) audio subsystem using the SigmaTel* STAC9227 audio codec Video Intel® Graphics Media Accelerator 3000 (Intel® GMA 3000) onboard graphics subsystem I/O Control Legacy I/O controller for diskette drive, serial, parallel, and optional PS/2* ports LAN Support Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel® 82566DM Gigabit Ethernet Controller Peripheral Interfaces Ten USB 2.0 ports Two IEEE-1394a interfaces: one back panel connector and one front-panel header Six Serial ATA interfaces One Parallel ATA IDE interface with UDMA 33, ATA-66/100/133 support One diskette drive interface One serial port One parallel port
Trusted Platform Module (TPM), revision 1.2 A component that enhances platform security Expansion Capabilities One PCI Express* x16 bus add-in card connector One PCI Express* x1 bus add-in card connector Two PCI Conventional* bus connectors
Intel® Desktop Board DQ965GF
microATX (9.60 inches by 9.60 inches [243.84 millimeters by 243.84 millimeters]) Processor Support for an Intel® Core™2 Duo processor in an LGA775 socket with a 1066 or 800 MHz system bus Support for an Intel® Pentium® D processor in an LGA775 socket with an 800 or 533 MHz system bus Support for an Intel® Pentium® 4 processor in an LGA775 socket with an 800 or 533 MHz system bus Support for an Intel® Celeron® D processor in an LGA775 socket with a 533 MHz system bus
Memory Four 240-pin DDR2 SDRAM Dual Inline Memory Module (DIMM) sockets Support for DDR2 800, DDR2 667, or DDR2 533 MHz DIMMs Support for up to 8 GB of system memory
Chipset Intel® Q965 Express Chipset Audio 6-channel (5.1) audio subsystem using the SigmaTel* STAC9227 audio codec Video Intel® Graphics Media Accelerator 3000 (Intel® GMA 3000) onboard graphics subsystem LAN Support Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel® 82566DM Gigabit Ethernet Controller Peripheral Interfaces Ten USB 2.0 ports Two IEEE-1394a interfaces: one back panel connector and one front-panel header (optional) Six Serial ATA IDE interfaces One Parallel ATA IDE interface with UDMA 33, ATA-66/100/133 support One diskette drive interface One serial port One parallel port
Trusted Platform Module (TPM), revision 1.2 A component that enhances platform security I/O Control Legacy I/O controller for diskette drive, serial, parallel, and optional PS/2* ports Expansion Capabilities One PCI Express* x16 bus add-in card connector One PCI Express* x1 bus add-in card connectors Two PCI Conventional* bus connectors