Your Browsing History
Quick View
Serial PORT Ribbon DB9 9 pin male plug to female panel mount internal cable, 3.3ft/1m
- Type: Cable Connectors
- Type: Serial PORT Ribbon DB9 9 pin male plug to female panel mount internal cable
- Color: Grey
- Connector Number: 2
- Model #: NTRADB9MFC
- $16.98 –
- Free Shipping
Quick View
black box network services db9 serial extension cable male/female
- Model #: RNAB0030USK3Q
- $21.56 –
- Free Shipping
Quick View
USB to RS232 DB9 Serial Male Converter Adapter Cable with PL2303 Chipset Gold Plated Driverless for Win8.1/8, Compatible with 8/7/Vista/XP//2000 and Mac OS X 10.6 and Above , 6ft/2m
- Type: Audio / Video Cables
- Type: USB to RS232 DB9 Serial Male Converter Adapter Cable
- Color: Black
- Connector Number: 1
- Model #: NTR20222L
- $19.98 –
- Free Shipping
Quick View
USB to RS232 DB9 9 pin Serial Male Converter Adapter Cable 20206 Compatible with 10/8.1/8/7/RT/Vista/XP//2000 and Mac OS X 10.6 to 10.11 EI Capitan and Above with FTDI Chipset Gold Plated,1m, 20206
- Type: Cable Connectors
- Type: USB 2.0 to RS232 DB9 Serial Cable Male A Converter Adapter with FTDI Chipset
- Color: Black
- Connector Number: 2
- Model #: NTR1000632W
- $25.97 –
- More options from $25.97 - $36.89
- Free Shipping
Quick View
IEC 320 C14 male to IEC C5 AC adapter C14 to C5 Adapter AC Power Plug Adapter
- Model #: IW-cables02-33
- $7.99 –
- Free Shipping
Quick View
black box 20-ft rs232 shielded cable metal hood db9 male/female
- Model #: RNAB0064CUIKK
- $42.82 –
- Free Shipping
Quick View
black box 25ft. rs232 serial cable shielded cm molded db9 m/f w/thumbscrews
- Model #: RNAB0064CX4FG
- $38.06 –
- Free Shipping
Quick View
Datalogic 90G000006 CABLE,CAB-350 SH5211,RS,RJ6 PO T,RADIANT,STRAIGHT,2M
- Model #: DA#90G000006
- $23.65 –
- Free Shipping
Quick View
Datalogic 90A051939 DATALOGIC ADC CAB-327 SH3630 STRAIGHT VERIFONE SERIAL CABLE WORKS WITH ALL READERS REQUIRES 90A051500 CAB-376 ADPATER FOR DIAMOND SK
- Model #: DA#90A051939
- $43.71 –
- Free Shipping
Quick View
Micro Connectors 6 Feet AT Modem Serial Cable (DB9 Female to DB25 Male) (M02-116)
- Color: Black
- Model #: M02-116
- $6.24 –
- $7.99 Shipping
Quick View
Micro Connectors 100 Feet 4/Conductor (24AWG) Stranded-Shielded Bulk Cable (TR4-4C24G-100)
- Color: Gray
- Model #: TR4-4C24G-100
- $23.99 –
- $12.99 Shipping
Quick View
Micro Connectors 50 Feet 25-Conductor (24AWG) Stranded-Shielded Bulk Cable (M110-25C24G-50)
- Color: Gray
- Model #: M110-25C24G-50
- $31.49 –
- $12.99 Shipping
Quick View
Micro Connectors 100 Feet 9/Conductor (24AWG) Stranded-Shielded Bulk Cable (TR4-9C24G-100)
- Color: Gray
- Model #: TR4-9C24G-100
- $60.99 –
- $12.99 Shipping
Quick View
DB9 to RJ45 Console Cable Device Management Serial Adapter 72-3383-01 CAB-CONSOLE-RJ45 (6 Feet, Blue)
- Model #: 690890034554
- $15.99 –
- Free Shipping
Quick View
DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet
- Model #: 69089645643122
- $25.99 –
- Free Shipping
Quick View
DTech Serial Cable to USB Adapter DB9 Male RS232 Port Supports Windows 11 10 8 7 Mac (6 Feet, PL2303)
- Model #: 6906867861
- $29.99 –
- Free Shipping
Quick View
Micro Connectors 500 Feet 4/Conductor (24AWG) Stranded-Shielded Bulk Cable (TR4-4C24G-500)
- Color: Gray
- Model #: TR4-4C24G-500
- $109.99 –
- $12.99 Shipping
Quick View
D9 6-pin Male RS232 Interface COM Download Data Coiled Cable for Top-con/Sokkia/Trimble
- Model #: 6905784654
- $38.88 –
- Free Shipping
Quick View
Micro Connectors 500 Feet 9-Conductor (24AWG) Stranded-Shielded Bulk Cable (TR4-9C24G-500)
- Color: Gray
- Model #: TR4-9C24G-500
- $193.99 –
- $18.99 Shipping
Quick View
- Model #: 194-147613000202192
- $57.00 –
- Free Shipping
Quick View
- Type: Consumer Electronics
- Type: Others
- Color: Black
- Connector Number: 2
- Model #: JD523A
- $31.00 –
- More options from $31.00 - $133.82
- Free Shipping
Quick View
Micro USB to Cable, Micro USB 5P to Male 1080P Phone to TV Mirroring Projection Cable for Tablets
- Model #: LJX-DPX-0478
- $16.99 –
- More options from $15.32 - $19.99
- Free Shipping
Quick View
set Sata To Sata Cable 4 Ports/Set Date Cable Sata 7 Pin To Sata 7 Pin Sas Cable 6Gbps HDD Splitter Cable For Server(4 to 4 straight)
Cable length:1M
Limited time offer, ends 07/07
- Model #: LJX-DPX-0210
- $35.48 –
- More options from $35.48 - $44.00
- Free Shipping
Quick View
3M MINI SAS 26P 2C SFF-8088 Cable TO SFF-8088 Data Cable Mini SAS SFF-8088 Male To 8088 Cable 26P TO 26P Hard Disk Cable 16ft
Limited time offer, ends 07/07
- Model #: LJX-DPX-0001
- $39.59 –
- More options from $39.59 - $45.50
- Free Shipping
Quick View
Vszerda DB9 to RS232 Serial RJ22 Adapter Cable TLS2200 PC to Printer Cable TLS2200 PC - Printer cable
- Model #: TRF949YH
- $23.69 –
- Free Shipping
Quick View
4Pin Fan PWM Cable 1 to 2 Motherboard 4-Pin Female to PWM Fan 4-Pin Male Multi-fan Temperature Control Extension Cable Fan Cable
Limited time offer, ends 07/07
- Model #: LJX-DPX-0133
- $18.90 –
- More options from $13.09 - $18.90
- Free Shipping
Quick View
3M MINI SAS 26P 2C SFF-8088 Cable TO SFF-8088 Mini SAS SFF-8088 Male To 8088 Male Cable 26P TO 26P Hard Disk Cable big Cable 9ft
Limited time offer, ends 07/07
- Model #: LJX-DPX-0012
- $48.08 –
- More options from $48.08 - $53.00
- Free Shipping
Quick View
Motherboard USB3.0+USB2.0 I/O Board Internal Cable HUB High Extension Cable Cable for PC Computer for C
Limited time offer, ends 07/19
- Model #: LJX-DPX-0367
- $11.53 –
- More options from $11.53 - $23.00
- Free Shipping
Quick View
SATA 22 Pin Male To Female Sata Extension Cable SATA 3 III 22 Pin Male to Female 7+15 Pin SATA Data Power Combo Extension Ca
Limited time offer, ends 07/19
- Model #: LJX-DPX-0183
- $10.56 –
- More options from $10.56 - $21.00
- Free Shipping
Quick View
CH340 USB to RS232 CM Port Cable USB to 9 pin adapter DB9 cable RS232 USB Adapter For PC Accessories Notebook Windows 98 XP 7 8
- Model #: 98H4FTH
- $29.99 –
- Free Shipping
Quick View
Molex to Fan Power Splitter Cable 4Pin IDE Molex to 3Pin Cooling Fan Power Cable
Limited time offer, ends 07/19
- Model #: LJX-DPX-0340
- $16.09 –
- More options from $12.55 - $19.99
- Free Shipping
Quick View
Vszerda 6-Pack DB25 25Pin Female to Female Male to Male Mini Gender Changer Coupler Adapter RS232 Serial Cable Connector
- Model #: YT4J98HRF
- $27.59 –
- Free Shipping
Quick View
Fan Extension Power Splitter Cable Connector PC 1 to 4 4-Pin Cooling Hub Splitter Cable 12V SATA Power Supply Adapter
Limited time offer, ends 07/19
- Model #: LJX-DPX-0237
- $20.03 –
- More options from $18.38 - $20.03
- Free Shipping
Quick View
Fan Extension Power Splitter Cable Connector PC 1 to 3 4-Pin Cooling Hub Splitter Cable 12V SATA Power Supply Adapter
Limited time offer, ends 07/19
- Model #: LJX-DPX-0238
- $18.84 –
- More options from $17.75 - $20.90
- Free Shipping
Quick View
PCIe PCIe 8P to 2x 8P Adapter Splitter Power Extension Cable,Power Supply PCI-e 8-pin for PCI Express GPU Video(PCIe 8P to 2x 8P)
Limited time offer, ends 07/19
- Model #: LJX-DPX-0167
- $16.96 –
- More options from $16.96 - $21.14
- Free Shipping
Quick View
0.5M 2C External MINI SAS 26P SFF-8088 TO SFF-8088 Data Cable Mini SAS SFF-8088 Male To 8088 Male Cable 26P Hard Disk Cable
Limited time offer, ends 07/07
- Model #: LJX-DPX-0021
- $19.31 –
- More options from $19.31 - $24.50
- Free Shipping
Quick View
9Pin USB Header Splitter Male 1 to 2 Female Extension Cable Card for Motherboard, USB 2.0 Splitter Cable Connector
Limited time offer, ends 07/19
- Model #: LJX-DPX-0258
- $15.82 –
- More options from $15.82 - $18.12
- Free Shipping
Quick View
Vszerda 6-Pack DB25 25Pin Male to Male Mini Gender Changer Coupler Adapter RS232 Serial Cable Connector
- Model #: T4H98FH
- $27.69 –
- Free Shipping
Quick View
IEC 320 C14 Male Plug to C5 Female Adapter Cable IEC 3 Pin Male to C5 Micky.PDU PSU Power Converter Cord 1M
Limited time offer, ends 07/19
- Model #: LJX-DPX-0163
- $15.41 –
- More options from $15.41 - $28.40
- Free Shipping
Quick View
0.5M 3C External MINI SAS 26P SFF-8088 TO SFF-8088 Data Cable Mini SAS SFF-8088 Male To 8088 Male Cable 26P Hard Disk Cable
Limited time offer, ends 07/07
- Model #: LJX-DPX-0010
- $26.75 –
- More options from $26.75 - $30.50
- Free Shipping
Quick View
5V 3Pin ARGB RGBW Cable SYNC RGB 10 Hub Splitter Power Extension Cable
Limited time offer, ends 07/19
- Model #: LJX-DPX-0462
- $18.63 –
- More options from $16.82 - $20.72
- Free Shipping
Quick View
2M MINI SAS 26P SFF-8088 TO SFF-8088 Cable Mini SAS SFF8088 To SFF8088 Cable 26P TO 26P Hard Disk Cable
Limited time offer, ends 07/07
- Model #: LJX-DPX-0032
- $32.20 –
- More options from $32.20 - $38.00
- Free Shipping
Quick View
20cm PCIe 4 Pin to 8 Pin Power Adapter Cable 4P female to 8P male PCIe Power Cord For PCI-e Video Cards
Limited time offer, ends 07/19
- Model #: LJX-DPX-0236
- $18.89 –
- More options from $17.75 - $19.44
- Free Shipping
Quick View
1M 2C External MINI SAS 26P SFF-8088 TO SFF-8088 Data Cable Mini SAS SFF-8088 Male To 8088 Male Cable 26P TO 26P Hard Disk Cable
Limited time offer, ends 07/07
- Model #: LJX-DPX-0039
- $24.68 –
- More options from $24.68 - $29.00
- Free Shipping
Quick View
USB to RS232 Serial Cable 3M, DB9 Adapter (PL2303 Chipset) Support Cashier Register, Modem, Scanner, Digital Cameras, CNC etc, 10FT /Black
Limited time offer, ends 06/24
- Brand: Vszerda
- Type: USB
- Color: Black
- Length: 10 feet
- Model #: CD0479
- $32.29 –
- Free Shipping
Quick View
Vszerda FT232RL FT232 USB TO TTL 5V 3.3V Download Cable To Serial Adapter Module USB TO 232
- Model #: GRW557
- $22.49 –
- Free Shipping
Quick View
CPU 8pin Female To Cpu 8p Male+ATX 4P Male Extension Cable 8 Female To 8+4 Male
Limited time offer, ends 07/19
- Model #: LJX-DPX-0286
- $17.83 –
- More options from $17.52 - $19.92
- Free Shipping
Quick View
4Pin to 3Pin Fan Power Cable Adapter Connector 12V 7V 5V Cooling Fan Cable
Limited time offer, ends 07/19
- Model #: LJX-DPX-0186
- $12.29 –
- More options from $12.29 - $20.91
- Free Shipping
Quick View
1pc SATA TO IDE Power Cable 15 Pin SATA Male to IDE 4 Pin Female Cable Adapter
Limited time offer, ends 07/07
- Model #: LJX-DPX-0187
- $12.90 –
- More options from $12.90 - $18.74
- Free Shipping
Quick View
set Sata To Sata Cable 4 Ports/Set Date Cable Sata 7 Pin To Sata 7 Pin Sas Cable 6Gbps HDD Splitter Cable For Server(4 to 4 90 Degrees)
Cable length:1M
Limited time offer, ends 07/07
- Model #: LJX-DPX-0208
- $34.50 –
- More options from $34.50 - $41.00
- Free Shipping
Quick View
set Sata To Sata Cable 4 Ports/Set Date Cable Sata 7 Pin To Sata 7 Pin Sas Cable 6Gbps HDD Splitter Cable For Server(4 to 4 straight)
Cable length:(0.5m)
Limited time offer, ends 07/07
- Model #: LJX-DPX-0209
- $32.03 –
- More options from $32.03 - $38.00
- Free Shipping
Quick View
set Sata To Sata Cable 4 Ports/Set Date Cable Sata 7 Pin To Sata 7 Pin Sas Cable 6Gbps HDD Splitter Cable For Server(4 to 4 90 Degrees)
Cable length:(0.5m)
Limited time offer, ends 07/07
- Model #: LJX-DPX-0211
- $32.03 –
- More options from $29.73 - $35.00
- Free Shipping
Quick View
6FT 9-Pin DB9 Serial RS232 Port to RJ45 Rollover Console Cable for routers, including the 600, 800, 1600, and 1700 series - 6FT
Limited time offer, ends 06/24
- Model #: 279846579
- $16.89 –
- Free Shipping
Quick View
4in 1 USB Male to Micro USB Male Micro USB Multi Charging Cable 100cm Total Long(Black)
Limited time offer, ends 07/19
- Model #: LJX-DPX-0308
- $13.89 –
- More options from $12.31 - $14.44
- Free Shipping
Quick View
Vszerda Meade 505 Control Connector Wire Db9 To Rj9 Adapter Cable 4p4c Phone Crystal Com Pin Serial Port Rs232 Connection Signal Cable
- Model #: 4R98T43
- $20.09 –
- Free Shipping
Quick View
IEC 320 C14 Male Plug to C5 Female Adapter Cable IEC 3 Pin Male to C5 Micky.PDU PSU Power Converter Cord (0.3m)
Limited time offer, ends 07/19
- Model #: LJX-DPX-0161
- $12.69 –
- More options from $12.69 - $22.74
- Free Shipping
Quick View
2Ways 4PIN Black Mainboard Fan Cable Y Splitter PWM Fan Cable Line Computer PC Fan Power Extension Cable 1.5m
- Model #: LJX-DPX-0425
- $20.09 –
- More options from $20.09
- Free Shipping
Quick View
1 To 2 Way Y-Splitter Sleeved 4-Pin Male To 2x 4-Pin PWM Male Connector Fan Extension Adapter Cable
Limited time offer, ends 07/19
- Model #: LJX-DPX-0181
- $19.29 –
- More options from $18.80 - $20.84
- Free Shipping
Quick View
set Sata To Sata Cable 4 Ports/Set Date Cable Sata 7 Pin To Sata 7 Pin Sas Cable 6Gbps HDD Splitter Cable For Server(Double 90 Degrees)
Cable length:(0.5m)
Limited time offer, ends 07/07
- Model #: LJX-DPX-0212
- $29.03 –
- More options from $29.03 - $38.00
- Free Shipping
Quick View
set Sata To Sata Cable 4 Ports/Set Date Cable Sata 7 Pin To Sata 7 Pin Sas Cable 6Gbps HDD Splitter Cable For Server(Double 90 Degrees)
Cable length:1M
Limited time offer, ends 07/07
- Model #: LJX-DPX-0213
- $37.67 –
- More options from $37.67 - $44.00
- Free Shipping
Quick View
20cm 8" inch ATX 4 Pin Male to 4Pin Female PC CPU Power Extension Adapter Cable Cord Connector
Limited time offer, ends 07/19
- Model #: LJX-DPX-0400
- $22.19 –
- More options from $19.38 - $22.74
- Free Shipping
Quick View
4-Pin To 8-Pin ATX Male Female PC Motherboard CPU Power Supply Adapter Connector Cable
Limited time offer, ends 07/19
- Model #: LJX-DPX-0450
- $22.19 –
- More options from $19.48 - $22.74
- Free Shipping
Quick View
Sturdy 2x 8Pin Female to PCIE 5.0 12+4 16Pin Video Card Cable for RTX4000 RTX40(2X8PIN PLB)
Limited time offer, ends 07/19
- Model #: LJX-DPX-0324
- $30.49 –
- More options from $30.49 - $34.08
- Free Shipping
Quick View
2 Meter S1200-02 External MINI SAS 26P SFF-8088 TO SFF-8088 Cable Mini SAS SFF-8088 To 8088 Cable 26P TO 26P Hard Disk Cable 6ft
Limited time offer, ends 07/07
- Model #: LJX-DPX-0037
- $32.20 –
- More options from $32.20 - $38.00
- Free Shipping
Quick View
Vszerda LX08A USB To 485,USB To RS232 485 Double Function Converter Two-Way Transparent Transmission 500M Serial Cable
- Model #: UK49U82
- $24.79 –
- Free Shipping
Quick View
4pcs Computer Motherboard Power Cable Switch Push Button Switch On/Off/Reset Button Replacement Power Momentary Connector Cable
Limited time offer, ends 07/19
- Model #: LJX-DPX-0154
- $20.29 –
- More options from $19.31 - $23.00
- Free Shipping
Quick View
1Pc 3/4 Pin Computer PC Fan Power Cable Connector Adapter 5V 30cm Connect 3pin Or 4pin Fan To USB Adapter Cables
Limited time offer, ends 07/19
- Model #: LJX-DPX-0134
- $16.83 –
- More options from $16.83 - $18.92
- Free Shipping
Quick View
8 Pin to 8 Pin ATX EPS Male to Female Power Extension PSU Mainboard Power Extension Adapter Cable
Limited time offer, ends 07/19
- Model #: LJX-DPX-0153
- $19.89 –
- More options from $18.23 - $20.44
- Free Shipping
Quick View
WiFi to Powerbank Cable Connector DC5V to 12V USB Cable Boost Converter Step Up Cord for Wifi Router Modem Fan Speaker
- Model #: LJX-DPX-0492
- $19.29 –
- More options from $19.29 - $20.81
- Free Shipping
Quick View
CPU Power Cable Adapter (5.5 Inch ), 20-Pin Femle to 24-Pin Male Connector, ATX Internal Power Extension Cable
Limited time offer, ends 07/07
- Model #: LJX-DPX-0427
- $12.84 –
- More options from $10.98 - $15.34
- Free Shipping
Quick View
USB 5V to 12V Power Boost Line Adapter USB to 5.5mm 2.1mm Round Hole Connector Converter Cable USB Cord(Elbow-12V)
Limited time offer, ends 07/19
- Model #: LJX-DPX-0474
- $11.49 –
- More options from $11.49 - $20.84
- Free Shipping
Quick View
USB 5V to 12V Power Boost Line Adapter USB to 5.5mm 2.1mm Round Hole Connector Converter Cable USB Cord(Straight head-12V)
Limited time offer, ends 07/19
- Model #: LJX-DPX-0476
- $19.67 –
- More options from $17.77 - $20.22
- Free Shipping
Quick View
HDD Adapter 3.5 IDE to Hard Disk Converter 40 Pin Hard Drive Connector with Data Cable and Cable
Limited time offer, ends 07/07
- Model #: LJX-DPX-0267
- $16.95 –
- More options from $16.95 - $20.64
- Free Shipping
Quick View
15 Pin SATA Male to 8 Pin (6+2) PCI-e Power Supply Cable 15Pin SATA to 8Pin PCI Express Adapter for Graphics Video Card 8 inch
Limited time offer, ends 07/19
- Model #: LJX-DPX-0240
- $17.89 –
- More options from $17.30 - $18.44
- Free Shipping
Quick View
SATA Combo 15 Pin Power and 7 pin Data Cable 4 pin to Serial ATA Lead
Limited time offer, ends 07/19
- Model #: LJX-DPX-0135
- $22.19 –
- More options from $19.40 - $22.74
- Free Shipping
Quick View
PC Computer Power Supply PSU EPS ATX/12V 4 pin IDE to Motherboard 4-Pin P4 CPU Power Adapter Converter Cord Cable
Limited time offer, ends 07/19
- Model #: LJX-DPX-0182
- $16.89 –
- More options from $16.89 - $18.50
- Free Shipping
Quick View
Vszerda DB9 RS232 Male Port to RJ45 Female Connector Card DB9 Serial Port Extender to LAN CAT5 CAT6 RJ45 Network Ethernet Cable Adapter
- Model #: T4H98SD
- $23.79 –
- Free Shipping
Quick View
USB To 4Pin Computer Case Fan Adapter Cord 5v To 12V Line Adapter Cable(A)
Limited time offer, ends 07/19
- Model #: LJX-DPX-0260
- $15.89 –
- More options from $14.58 - $16.44
- Free Shipping
Quick View
1PC USB to 4 Pin PC Computer Cooling Fan Connector Cable Adapter Cord
Limited time offer, ends 07/19
- Model #: LJX-DPX-0180
- $20.89 –
- More options from $19.10 - $21.44
- Free Shipping
Quick View
Fan Extension Power Splitter Cable Connector PC 1 to 5 4-Pin Cooling Hub Splitter Cable 12V SATA Power Supply Adapter
Limited time offer, ends 07/07
- Model #: LJX-DPX-0239
- $15.42 –
- More options from $15.42 - $19.04
- Free Shipping
Quick View
1M MINI SAS 26P 2C SFF-8088 TO SFF-8088 Data Cable Mini SAS SFF-8088 To 8088 Male Cable 26P TO 26P Hard Disk Cable for Molex
- Model #: LJX-DPX-0002
- $24.50 –
- Free Shipping
Quick View
Vszerda 1.8m Mini USB Male to RS232 DB9 9 Pin Female Adapter Entension Leads Cable Connector DB9 9pin To Mini USB 5pin
- Model #: 9HT49THR
- $18.50 –
- Free Shipping
Quick View
10Pcs/lot Fan Resistor Cable 4 Pin Male to 4Pin Female Connector Reduce PC CPU Fan Speed Noise Resistor Slow down Cables(10pcs 4pin red)
(11CM)
Limited time offer, ends 07/19
- Model #: LJX-DPX-0151
- $32.39 –
- More options from $32.39 - $35.60
- Free Shipping
Quick View
10Pcs/lot Fan Resistor Cable 4 Pin Male to 4Pin Female Connector Reduce PC CPU Fan Speed Noise Resistor Slow down Cables(10pcs 4pin blue)
(11CM)
Limited time offer, ends 07/19
- Model #: LJX-DPX-0150
- $32.39 –
- More options from $32.39 - $35.60
- Free Shipping
Bestselling Serial Cables Reviews:
Erik K.
5/4/2021 9:41:48 AM
Great USB-to-Serial for console connections
“ But I've used several USB-to-Serial cables before; this does what the rest of them do, save that the braided cord construction and led activity are nice to have, and as with Prolific's previous interfaces, this will work on just about anything w/o the need for drivers. ”
StarTech.com ICUSB232SM3 USB to Serial Adapter - Prolific PL-2303 - 3 ft / 1m - DB9 (9-pin) - USB to RS232 Adapter Cable - USB Serial